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Researchers at UCD

researcher

Neal Murphy

Lecturer/Assistant Professor

School Of Mechanical & Materials Eng
Engineering Building
Belfield
Dublin 4

Tel: +353 1 7161940
Email: neal.murphy@ucd.ie

Biography

Neal Murphy joined the staff of UCD in 1989 having completed an MEngSc in Robotics a couple of years earlier. Since then, his main area of interest has been Mechanics of Materials, to which he has subjected hoards of undergraduate engineering students over the past two decades. Following a chance encounter in the early 1990s with the eminent Prof. Bertram Broberg, late of Lund University and UCD, he developed a keen interest in Fracture Mechanics which has dominated his research activities to date. In 2007 he was awarded a PhD from UCD. The title of his thesis was "Dynamic Fracture of PMMA: A Combined Experimental and Numerical Investigation", which was supervised by Prof. Alojz Ivankovic, formally of Imperial College London and now at UCD. His current research activities include the fracture behaviour of structural adhesives and composite materials (both experimental and computational analysis), and the brittle fracture of PCBN and PCD cutting tools at a wide range of loading rates and temperatures.

External interests include tennis, gardening, and sampling as wide a variety of wines as possible. He is married with two children.   

Professional

   

Patents

Patent 1108967.9 : Superhard Structure, Tool Element and Method of Making Same
     

Committees

Committee : European Structural Integrity Society (ESIS) Technical Committee 4
Committee : National Standards Association of Ireland (NSAI) Committee on Goalpost Safety
 

Education

Year 1985 Institution: University College Dublin
Qualification: MEngSc Subject:
Year 1988 Institution: University College Dublin
Qualification: BE Subject:
Year 2007 Institution: University College Dublin
Qualification: PhD Subject:
         

Publications

 

Book Chapters

Kanyanta, V. Ivankovic, A., Murphy, N. (2013) 'Biomedical Applications of Elastomers, their Blends, IPNs and Composites' In: Thomas, S., Mathew, A.P., Visakh, P.M., Chandra, A.K (eds). Advances in Elastomers II. Berlin, Germany: Springer-Verlag GmbH. [Details]
Ramamoorthy, A. and Mohan, J. and Byrne, G. and Murphy, N. and Ivankovic, A. and Dowling, D.P. (2013) 'Achieving Enhanced Fracture Toughness of Adhesively Bonded Cured Composite Joint Systems Using Atmospheric Pressure Plasma Treatments' In: Mittal, K. L. and Thomas, M (eds). Atmospheric Pressure Plasma Treatment of Polymers. Scrivener Publishing. [DOI] [Details]
N. Murphy, L.F. Kawashita (2012) 'The Analysis of Peel Tests' In: Da Silva, L.F.M.; Dillard, D.A.; Blackman, B.R.K.; Adams, R. D (eds). Testing Adhesive Joints: Best Practices. Weinheim, Germany: Wiley-VCH Verlag GmbH. , pp.257-272 [Details]
Ivankovic A., Murphy N., Hillmansen S. ; (2005) 'Evolution of dynamic fractures in PMMA: experimental and numerical' In: Aliabadi MH., Ivankovic A (eds). Crack dynamics. Advances in fracture. Southampton, UK: WIT Press/Computational Mechanics. [Details]
 

Peer Reviewed Journals

Mc Auliffe, D., Karač, A., Murphy, N., Ivankovic, A. (2016) 'The measurement of damage initiation, particle adhesion and cohesive strength from traction displacement curves of a nano-toughened epoxy'. International Journal of Adhesion and Adhesives, 70 :62-73. [Details]
Quan, D., Murphy, N., Ivankovic, A. (2017) 'Fracture behaviour of epoxy adhesive joints modified with core-shell rubber nanoparticles'. Engineering Fracture Mechanics, 182 :566-576. [Details]
Quan, D., Cardiff, P., Murphy, N., Ivankovic, A. (2017) 'Damage behaviour of nano-modified epoxy adhesives subject to high stress constraint'. Journal of Adhesion, . [DOI] [Details]
Quan, D., Cardiff, P., Murphy, N., Ivankovic, A. (2017) 'Damage behaviour of nano-modified epoxy adhesives subject to high stress constraint'. Journal of Adhesion, . [DOI] [Details]
Quan, D., Carolan, D., Rouge, C., Murphy, N., Ivankovic, A. (2017) 'Carbon nanotubes and core¿shell rubber nanoparticles modified structural epoxy adhesives'. Journal of Materials Science, 52 :4493-4508. [Details]
Quan, D., Carolan, D., Rouge, C., Murphy, N., Ivankovic, A. (2017) 'Mechanical and fracture properties of epoxy adhesive modified with graphene nanoplatelets and rubber particles'. International Journal of Adhesion and Adhesives, . [Details]
Quan, D., Murphy, N., Ivankovic, A. (2017) 'Fracture behaviour of a rubber nano-modified structural epoxy adhesive: Bond gap effects and fracture damage zone'. International Journal of Adhesion and Adhesives, 77 :138-150. [Details]
D. McNamara, D. Carolan, P. Alveen, N. Murphy, A. Ivankovic (2016) 'Effect of loading rate on the fracture toughness and failure mechanisms of polycrystalline diamond (PCD)'. International Journal of Refractory Metals and Hard Materials, 60 :1-10. [DOI] [Details]
T. Stefanov, B. Ryan, A. Ivankovic, N. Murphy (2016) 'Mechanical bulk properties and fracture toughness of composite-to-composite joints of an elastomer-toughened ethyl cyanoacrylate adhesive'. International Journal of Adhesion and Adhesives, 68 :142-155. [DOI] [Details]
Mohan, J., Ivanković, A., Murphy, N. (2015) 'Mixed-mode fracture toughness of co-cured and secondary bonded composite joints'. Engineering Fracture Mechanics, 134 :148-167. [DOI] [Details]
Alveen, P., McNamara, D., Carolan, D., Murphy, N., Ivanković, A. (2015) 'The influence of microstructure on the fracture properties of polycrystalline cubic boron nitride'. Computational Materials Science, 109 :115-123. [DOI] [Details]
McNamara, D., Alveen, P., Carolan, D., Murphy, N., Ivanković, A. (2015) 'Fracture toughness evaluation of polycrystalline diamond as a function of microstructure'. Engineering Fracture Mechanics, 143 :1-16. [DOI] [Details]
McNamara, D., Alveen, P., Carolan, D., Murphy, N., Ivanković, A. (2015) 'Numerical analysis of the strength of polycrystalline diamond as a function of microstructure'. International Journal of Refractory Metals and Hard Materials, 52 :195-202. [DOI] [Details]
McNamara, D., Alveen, P., Damm, S., Carolan, D., Rice, J.H., Murphy, N. and Ivankovic, A. (2015) 'A Raman spectroscopy investigation into the influence of thermal treatments on the residual stress of polycrystalline diamond'. International Journal of Refractory Metals and Hard Materials, 52 :114-122. [Details]
Mohan, J., Ramamoorthy, A., Ivankovic, A., Dowling, D., Murphy, N. (2014) 'Effect of an atmospheric pressure plasma treatment on the mode I fracture toughness of a co-cured composite joint'. The Journal of Adhesion, 90 (9):733-754. [DOI] [Details]
Kanyanta, V., Dormer, A., Murphy, N, Ivankovic, A., (2014) 'Impact fatigue fracture of polycrystalline diamond compact (PDC) cutters and the effect of microstructure'. International Journal of Refractory Metals and Hard Materials, 46 :145-151. [Details]
McNamara, D., Carolan, D., Alveen, P., Murphy, N. and Ivankovic, A. (2014) 'The influence of microstructure on the fracture statistics of polycrystalline diamond and polycrystalline cubic boron nitride'. Ceramics International, 40 (8):11543-11549. [Details]
P. Alveen, D. McNamara, D. Carolan, N. Murphy, A. Ivankovic. (2014) 'Analysis of two-phase ceramic composites using micro mechanical models'. Computational Materials Science, 92 :318-324. [Details]
P. Alveen, D. McNamara, D. Carolan, N. Murphy, A. Ivankovic. (2014) 'Analysis of two-phase ceramic composites using micromechanical models'. Computational Materials Science, 92 :318-324. [DOI] [Details]
D. McNamara, P. Alveen, D. Carolan, N. Murphy, A. Ivankovic. (2014) 'Micromechanical study of strength and toughness of advanced ceramics'. Procedia Materials Science, 3 :1810-1815. [DOI] [Details]
P. Alveen, D. McNamara, D. Carolan, N. Murphy, A. Ivankovic. (2014) 'An Embedded Microstructural Model for Predicting the Strength and Toughness of Multi-phase Ceramics'. Procedia Materials Science, 3 :1804-1809. [DOI] [Details]
Mohan, J., Ivankovic, A. and Murphy, N. (2014) 'Mode I fracture toughness of co-cured and secondary bonded composite joints'. International Journal of Adhesion and Adhesives, 51 :13-22. [DOI] [Details]
Stelzer, S., Brunner, A.J., Arguelles, A., Murphy, N., Cano, G.M. and Pinter, G. (2014) 'Mode I delamination fatigue crack growth in unidirectional fiber reinforced composites: Results from ESIS TC4 round-robins'. Engineering Fracture Mechanics, 116 :92-107. [DOI] [Details]
Mohan, J., Ivankovic, A. and Murphy, N. (2013) 'Effect of prepreg storage humidity on the mixed-mode fracture toughness of a co-cured composite joint'. Composites Part A: Applied Science and Manufacturing, 45 :23-34. [Details]
Alveen, P. and McNamara, D., Carolan, D., Murphy, N. and Ivankovic, A. (2013) 'Micromechanical modelling of advanced ceramics with statistically representative synthetic microstructures'. Key Engineering Materials, 592-593 :137-140. [Details]
McNamara, D., Alveen, P., Carolan, D., Murphy, N. and Ivankovic, A. (2013) 'The role of microstructure on the fracture behaviour and statistics of advanced ceramics'. Key Engineering Materials, 577 :57-60. [DOI] [Details]
Alveen, P., McNamara, D., Carolan, D., Murphy, N. and Ivankovic, A. (2013) 'Micromechanical modelling of advanced ceramics using statistically representative microstructures'. Key Engineering Materials, 577 :53-56. [DOI] [Details]
Carolan, D,Tukovic, Z,Murphy, N,Ivankovic, A (2013) 'Arbitrary crack propagation in multi-phase materials using the finite volume method'. Computational Materials Science, 69 :153-159. [DOI] [Details]
Alveen, P. and McNamara, D., Carolan, D., Murphy, N. and Ivankovic, A. (2013) 'Micromechanical modelling of advanced ceramics with statistically representative synthetic microstructures'. Key Engineering Materials, 592-593 :137-140. [DOI] [Details]
McNamara, D., Alveen, P., Carolan, D., Murphy, N. and Ivankovic, A. (2013) 'The role of microstructure on the fracture behaviour and statistics of advanced ceramics'. Key Engineering Materials, 577-578 :57-60. [DOI] [Details]
P. Alveen, D. Carolan, D. McNamara, N. Murphy, A. Ivankovic. (2013) 'Micromechanical modelling of ceramic based composites with statistically representative synthetic microstructures'. Computational materials science, 79 :960-970. [DOI] [Details]
Carolan, D., Ivankovic, A. and Murphy, N. (2013) 'A Combined Experimental-Numerical Investigation of Fracture of Polycrystalline Cubic Boron Nitride'. Engineering Fracture Mechanics, 99 :101-117. [Details]
Mc Auliffe, D., Karač, A., Murphy, N. and Ivanković, A. (2012) 'Characterisation of the Fracture Energy and Toughening Mechanisms of a Nano-Toughened Epoxy Adhesive'. Key Engineering Materials, 488-489 :573-576. [Details]
Carolan, D., Ivankovic, A. and Murphy, N. (2012) 'Thermal Shock Characteristics of Polycrystalline Cubic Boron Nitride'. Journal of the European Ceramic Society, 32 (10):2581-2586. [Details]
Petrovic, M., Ivankovic, A., Murphy, N. (2012) 'The Mechanical Properties of Polycrystalline Diamond as a Function of Strain Rate and Temperature'. Journal of the European Ceramic Society, 32 (12):3021-3027. Link to full text [Details]
Stelzer, S., Brunner, A.J., Arguelles, A., Murphy, N. and Pinter, G. (2012) 'Mode I delamination fatigue crack growth in unidirectional fiber reinforced composites: Development of a standardized test procedure'. Composites Science and Technology, 72 (10):1102-1107. Link to full text [Details]
Leonard, M., Murphy, N., Karač, A. and Ivanković, A. (2012) 'A numerical investigation of spherical void growth in an elasticplastic continuum'. computational materials science, 64 :38-40. [Details]
Cooper, V., Ivankovic, A., Karac, A., McAuliffe, D. and Murphy, N. (2012) 'Effects of bond-gap thickness on the fracture of nano-toughened epoxy adhesive joints'. Polymer, 53 (24):5540-5553. [Details]
Carolan, D., Ivankovic, A. and Murphy, N. (2012) 'Numerical investigation into dynamic fracture of PCBN'. Key Engineering Materials, 488-489 :553-556. [Details]
Petrovic, M., Ivankovic, A., Murphy, N. (2012) 'High rate and high temperature fracture behaviour of polycrystalline diamond'. Key Engineering Materials, 488-489 :670-673. [Details]
Mohan, J., Karac, A., Murphy, N. and Ivankovic, A. (2012) 'An experimental and numerical investigation of the mixed-mode fracture toughness and lap shear strength of aerospace grade composite joints'. Key Engineering Materials, 488-489 :549-552. [Details]
Carolan, D., Petrovic, M., Ivankovic, A. and Murphy, N.; (2011) 'Fracture Properties of PCBN as a function of loading rate and temperature'. Key Engineering Materials, 452-453 :457-600. Link to full text [Details]
Carolan, D., Ivankovic, A., and Murphy, N.; (2011) 'Effect of Notch Root Radius on Fracture Toughness of Polycrystalline Cubic Boron Nitride'. Engineering Fracture Mechanics, 78 (17):2885-2895. Link to full text [Details]
Petrovic, M., Carolan, D., Ivankovic, A. and Murphy, N.; (2011) 'Role of rate and temperature on fracture and mechanical properties of PCD'. Key Engineering Materials, 452-453 :153-156. [Details]
Carolan, D., Petrovic, M., Ivankovic, A., Murphy, N.; (2010) 'Fracture properties of PCBN as a function of loading rate'. Key Engineering Materials, 417-418 :669-672. [Details]
A.J. Brunner, N. Murphy, G. Pinter.; (2009) 'Development of a Standardized Procedure for the Characterization of Interlaminar Delamination Propagation in Advanced Composites under Fatigue Mode I Loading Conditions'. Engineering Fracture Mechanics, . [Details]
Mohan, J., Carolan, D., Murphy, N., Ivankovic, A., and Dowling, D. P.; (2007) 'Influence of an Atmospheric Pressure Plasma Surface Treatment on the Interfacial Fracture Toughness of Bonded Composite Joints'. Structural Durability & Health Monitoring, 3 (2):81-86. [Details]
Murphy, N., M. Ali and Ivankovic, A.; (2006) 'Dynamic Crack Bifurcation in PMMA'. ENGINEERING FRACTURE MECHANICS, 73 :2569-2587. [Details]
Murphy, N. and Ivankovic, A.; (2005) 'The Prediction of Dynamic Fracture Evolution in PMMA using a Cohesive Zone Model'. ENGINEERING FRACTURE MECHANICS, 72 :861-875. [Details]
 

Conference Publications

D. Quan, D. Carolan, C. Rouge, N. Murphy, A. Ivankovic (2017) Effect of carbon nano-fillers on the fracture baheviour of a rubber-modified epoxy adhesive 40th Annual Meeting of the Adhesion Society, St. Petersburg, USA [Details]
A. Ivankovic, N. Murphy, D. Quan, Z. Tukovic (2017) Geometrical transferability in fracture of nano-CSR modified structural epoxy adhesives 40th Annual Meeting of the Adhesion Society, St. Petersburg, USA [Details]
D. Quan, Z. Tukovic, N. Murphy, A. Ivankovic (2017) Fracture behaviour of epoxy adhesives modified with core-shell rubber nanoparticles 8th International Conference on Fracture of Polymers, Composites and Adhesives, Les Diablerets, Switzerland [Details]
N. Murphy, L. Castellani, A.J. Kinloch (2017) Peel testing of flexible laminates - the development of a new international standard 8th International Conference on Fracture of Polymers, Composites and Adhesives, Les Diablerets, Switzerland [Details]
G. Tadayyon, K. ¿e¿et, E. Parle, N. Murphy, A. Ivanković (2017) Additive Manufacturing of Diamond Cutting Tools - Pushing the boundaries of 3D Printing Irish Polymers and Materials Conference [Details]
K. Seset, G. Tadayyon, E. Parle, A. Ivankovic, N. Murphy (2017) Additive Manufacturing of Polycrystalline Diamond Cutters with Controlled Microstructures 68th Diamond Conference, University of Warwick, UK [Details]
D. Quan, D. Carolan, Cl. Rouge, N. Murphy, A. Ivankovic (2017) Carbon nanofiller and core-shell rubber nanoparticle modified structural epoxy adhesives 14th International Conference on Fracture ICF14, Rhodes, Greece [Details]
P. Cardiff, D. Carolan, A. Ivankovic, J. Labarga, M. Melibary, P. Moloney, N. Murphy, K. O¿Donovan, R. Pearson, D. Quan, C. Rouge, Z. Tukovic (2017) Advanced nano-composites and adhesive joints Innovate UK KTN, Joining of Composites, Belfast, Northern Ireland [Details]
M. Melibary, D. Carolan, D. Quan, N. Murphy (2017) The toughness and conductivity of Crestapol 1250LV modified with CSR nanoparticles and CNT 40th Annual Meeting of the Adhesion Society, St. Petersburg, USA [Details]
D. Quan, N. Murphy, A. Ivankovic (2016) Linking 3PB and TDCB test results for an epoxy adhesive 13th International Conference on the Science and Technology of Adhesion and Adhesives (Adhesion '16) [Details]
T. Stefanov, B. Ryan, A. Ivankovic, N. Murphy (2016) Bulk properties and fracture characterization of an elastomer-toughened cyanoacrylate adhesive 39th Annual Meeting of the Adhesion Society [Details]
L. Cahill, G. Boyle, N. Murphy, A. Ivankovic (2015) Adhesive bonding of composite adherends: The effect of adherent type on the apparent mode I fracture toughness 38th Annual Meeting of the Adhesion Society [Details]
P. Alveen, D. Carolan, D. McNamara, N. Murphy, A. Ivankovic (2015) PCD and PCBN with tailored properties: Multi-scale experimental and numerical study 66th Diamond Conference [Details]
P. Alveen, D. McNamara, D. Carolan, N. Murphy, A. Ivankovic (2015) PCD and PCBN with Tailored Mechanical and Fracture Properties: A Multi-Scale Experimental and Numerical study 5th Broberg Symposium on Mechanics of Materials [Details]
P. Gibbons and N. Murphy. (2014) An Investigation into the Self-Sensing Capabilities of Conductive Nanocomposites Irish Polymers and Materials Conference [Details]
T. Stefanov, A. Ivankovic and N. Murphy. (2014) Mechanical and fracture characterization of rubber-toughened cyanoacrylate adhesive joints Irish Polymers and Materials Conference [Details]
M. Leonard, N. Murphy and A. Ivankovic (2014) Modelling Nano-Particle Loading and Debonding in a Rubber-Toughened Adhesive using the Finite Volume Method Irish Polymers and Materials Conference [Details]
D. Quan, D. McAuliffe, N. Murphy and A. Ivankovic (2014) Role of particle volume fraction on properties and toughness of epoxy modified by core shell rubber particles Irish Polymers and Materials Conference [Details]
P. Cardiff, M. Leonard, N. Murphy and A. Ivankovic. (2014) Fracture Toughness Optimization of Nano-Toughened Structural Adhesives: A Representative Volume Element Approach 37th Annual Meeting of the Adhesion Society [Details]
D. Quan, D. McAuliffe, N. Murphy and A. Ivankovic. (2014) An Investigation of Toughness Mechanisms and Synergistic Effects in Nano-Toughened Epoxy Adhesives 37th Annual Meeting of the Adhesion Society [Details]
D. Quan, D. McAuliffe, N. Murphy and A. Ivankovic. (2014) An Investigation of Toughness Mechanisms and Synergistic Effects in Nano-Toughened Epoxy Adhesives 37th Annual Meeting of the Adhesion Society [Details]
D. McNamara, P. Alveen, N. Murphy, A. Ivankovic. (2014) Effect of loading rate on the fracture toughness of Polycrystalline Diamond (PCD) 65th Diamond Conference [Details]
Alveen, P., McNamara, D., Damm, S., Carolan, D., Rice, J., Murphy, N. and Ivankovic, A. (2014) Residual stress measurement of polycrystalline cubic boron nitride and polycrystalline diamond using Raman spectroscopy 65th Diamond Conference [Details]
P. Alveen, D. McNamara, D. Carolan, N. Murphy, A. Ivankovic. (2014) An embedded microstructural model for predicting the strength and toughness of multi-phase ceramics 20th European Conference on Fracture (ECF20) [Details]
D. McNamara, P. Alveen, D. Carolan, N. Murphy, A. Ivankovic. (2014) Micromechanical study of strength and toughness of advanced ceramics 20th European Conference on Fracture (ECF20) [Details]
A. Ivankovic, D. Quan, D. McAuliffe, D. Carolan, D. McNamara, P. Alveen, M. Leonard, Z. Tukovic, P. Cardiff, N. Murphy (2014) The fracture behaviour of nano-modified epoxy adhesives; particles, bubbles, synergies and predicting the past 9th Annual SPE Polymer Nanocomposites Conference [Details]
T. Stefanov, A. Ivankovic and N. Murphy (2014) Mechanical and fracture characterization of rubber-toughened cyanoacrylate adhesive joints 7th International Conference on Fracture of Polymers, Composites and Adhesives [Details]
P. Alveen, D. McNamara, D. Carolan, N. Murphy, A. Ivankovic. (2013) Numerical analysis of advanced ceramics using statistically representative synthetic microstructures IMS/ISSEC Symposium 2013 [Details]
D. Carolan, D. Mc Namara, P. Alveen, N. Murphy, A. Ivankovic (2013) A Combined Experimental Numerical Investigation into the role of Microstructure on the Fracture of Polycrystalline Cubic Boron Nitride IMS/ISSEC Symposium 2013 [Details]
D. Quan, M. Leonard, D. McAuliffe, N. Murphy, A. Ivankovic (2013) The Effect of Particle Volume Fraction on the Fracture Toughness of Nano- Toughened Epoxy Adhesives IMS/ISSEC Symposium 2013 [Details]
McNamara, D., Alveen, P., Carolan, D., Murphy, N. and Ivankovic, A. (2013) The Role of Microstructure on the Fracture Behaviour and Statistics of Advanced Ceramics 12th International Conference on Fracture and Damage Mechanics [Details]
Alveen, P., McNamara, D., Carolan, D., Murphy, N. and Ivankovic, A. (2013) Micromechanical modelling of advanced ceramics using statistically representative microstructures 12th International Conference on Fracture and Damage Mechanics [Details]
T. Stefanov, A. Ivankovic and N. Murphy. (2013) Fracture characterization of a rubber-toughened cyanoacrylate adhesive for composite-to-composite and metal-to-metal joints 12th International Conference on the Science and Technology of Adhesion and Adhesives (Adhesion ¿13) [Details]
Q. Dong, D. McAuliffe, A. Karac, N. Murphy, A. Ivankovic. (2013) The toughening mechanisms of an epoxy adhesive containing core-shell rubber particles 12th International Conference on the Science and Technology of Adhesion and Adhesives (Adhesion ¿13) [Details]
M. Leonard, D. McAuliffe, N. Murphy and A. Ivankovic. (2013) Micro-scale modelling of nano-toughened structural adhesives 12th International Conference on the Science and Technology of Adhesion and Adhesives (Adhesion ¿13) [Details]
Alveen, P., McNamara, D., Carolan, D., Murphy, N. and Ivankovic, A. (2013) Micromechanical modelling of advanced ceramics with statistically representative synthetic microstructures 7th International Conference on Materials Structure & Micromechanics of Fracture [Details]
Alveen, P., McNamara, D., Carolan, D., Murphy, N., and Ivankovic, A. (2013) Micro-mechanical modeling of superhard materials 13th International Conference on Fracture (ICF13) [Details]
McNamara, D., Alveen, P., Carolan, D., Murphy, N., and Ivankovic, A (2013) Dynamic fracture of polycrystalline diamond and polycrystalline cubic boron nitride under impact loading conditions using a miniaturized Kolsky bar 13th International Conference on Fracture (ICF13) [Details]
M. Leonard, N. Murphy and A. Ivankovic (2013) Modelling of Nano-Particle Debonding and Energy Dissipation in Toughened Structural Adhesives 36th Annual Meeting of the Adhesion Society [Details]
A. Karac, D. McAuliffe, N. Murphy and A. Ivankovic (2013) The Fracture Behaviour of a Nano-Modified Structural Epoxy Adhesive 36th Annual Meeting of the Adhesion Society [Details]
D. McNamara, P. Alveen, D. Carolan, N. Murphy, A. Ivankovic. (2013) Numerical Analysis of Polycrystalline Diamond IMS/ISSEC Symposium 2013 [Details]
Carolan, D., Ivankovic, A. and Murphy, N. (2012) Effect of microstructure on the fracture toughness of polycrystalline diamond and polycrystalline cubic boron nitride 7th International Congress of the Croatian Society of Mechanics [Details]
McAuliffe, D., Karač, A., Murphy, N. and Ivanković, A. (2012) Determination of the cohesive strength and toughening mechanisms of a nano‐modified adhesive under a triaxial stress state 35th Annual Meeting of the Adhesion Society [Details]
Leonard, M., McAuliffe, D., Karac, A., Ivankovic, A., Murphy, N. (2012) Micro-mechanical modeling of void growth and damage evolution of nano-toughened structural adhesives using the finite volume method 35th Annual Meeting of the Adhesion Society [Details]
Carolan, D., Murphy, N. and Ivankovic, A (2012) Effect of microstructure on the fracture toughness of polycrystalline diamond and polycrystalline cubic boron nitride 19th European Conference on Fracture (ECF19) [Details]
D. McAuliffe, A. Karać, N. Murphy, A. Ivanković.; (2011) Transferability of Adhesive Fracture Toughness Measurements between Peel and TDCB Test Methods for a Nano-Toughened Epoxy 34th Annual Meeting of the Adhesion Society Savannah, Georgia, USA, [Details]
J. Mohan, A. Karač, N. Murphy & A. Ivanković.; (2011) An Experimental and Numerical Investigation of the Mixed Mode Fracture Toughness and Lap Shear Strength of Aerospace Grade Composite Joints 34th Annual Meeting of the Adhesion Society Savannah, Georgia, USA, [Details]
S. Stelzer, A.J. Brunner, A. Argüelles, N. Murphy, G. Pinter. ; (2011) Mode I delamination fatigue crack growth in unidirectional fibre reinforced composites: Development of a standardized test procedure 11th Deformation and Fracture of Composites (DFC-11) Cambridge, UK, [Details]
M. Leonard, A. Ivankovic, N.Murphy, A. Karač.; (2011) Numerical Examination of Void Growth Models of Spherical Void Growth in a Continuum 21st International Workshop on Computational Mechanics of Materials (IWCMM) Limerick, Ireland, [Details]
J. Mohan, A. Karač, N. Murphy & A. Ivanković.; (2011) An Experimental and Numerical Investigation of the Mixed-Mode Fracture Toughness and Lap Shear Strength of Aerospace Grade Composite Joints 21st International Workshop on Computational Mechanics of Materials (IWCMM) Limerick, Ireland, [Details]
M. Leonard, A. Ivankovic, N.Murphy, A. Karač. ; (2011) Micro-Mechanical Modeling of Nano-Toughened Adhesives 6th OpenFOAM Workshop Penn State University, USA, [Details]
Mohan, J., Kanyanta, V., Karac, A., Murphy, N. and Ivankovic, A. (2011) Mode I fatigue crack propagation in peel ply prepared composite joints 6th International Conference on Fracture of Polymers, Composites and Adhesives [Details]
McAuliffe, D., Karač, A., Murphy, N. and Ivanković, A. (2011) Transferability of fracture properties between peel and TDCB tests for a nano-toughened epoxy adhesive 6th International Conference on Fracture of Polymers, Composites and Adhesives [Details]
Leonard, M., Ivankovic, A., Murphy, N. and McAuliffe, D. (2011) Micro-mechanical modelling of void growth, damage and fracture of nano-phase structural adhesives using the finite volume method 6th International Conference on Fracture of Polymers, Composites and Adhesives [Details]
McAuliffe, D., Karač, A., Murphy, N. and Ivanković, A. (2011) The fracture energy and toughening mechanisms of adhesive joints bonded with a nano-toughened epoxy 11th Triennial International Conference on the Science and Technology of Adhesion and Adhesives [Details]
Carolan, D., Ivankovic, A. and Murphy, N. (2011) Numerical investigation into dynamic fracture of PCBN 10th International Conference on Fracture and Damage Mechanics [Details]
Carolan, D., Ivankovic, A. and Murphy, N. (2011) Numerical investigation into dynamic fracture of PCBN 10th International Conference on Fracture and Damage Mechanics [Details]
32. Petrovic, M., Ivankovic, A. and Murphy, N. (2011) High rate and high temperature fracture behaviour of polycrystalline diamond 10th International Conference on Fracture and Damage Mechanics [Details]
Mohan, J., Karac, A., Murphy, N. and Ivankovic, A. (2011) An experimental and numerical investigation of the mixed-mode fracture toughness and lap shear strength of aerospace grade composite joints 10th International Conference on Fracture and Damage Mechanics [Details]
McAuliffe, D., Karač, A., Murphy, N. and Ivanković, A. (2011) Characterisation of the fracture energy and toughening mechanisms of a nano-toughened epoxy adhesive 10th International Conference on Fracture and Damage Mechanics [Details]
Mohan, J., Murphy, N. and Ivankovic, A. (2011) Composite adhesive joints Irish Adhesion and Surface Coating Conference [Details]
McAuliffe, D., Karač, A., Murphy, N. and Ivanković, A., Fracture of Nano-Toughened Epoxies. (2011) Fracture of Nano-Toughened Epoxies Irish Adhesion and Surface Coating Conference [Details]
Leonard, M., Ivankovic, A., Murphy, N. and Karac, A. (2011) Micro-mechanical modeling of nano-toughened structural adhesives Irish Adhesion and Surface Coating Conference 2011 [Details]
Petrovic, M., Carolan, D., Ivankovic, A. and Murphy, N.; (2010) Role of Rate and Temperature on Fracture and Mechanical Properties of PCD The 9th International Conference on Fracture and Damage Mechanics [Details]
Cooper, V., Ivankovic, A., Karac, A., McAuliffe, D., Murphy, N. and Tukovic, Z.; (2010) From bond gap thickness effects to geometric transferability of fracture parameters in structural adhesives - almost final chapter The 33rd Annual Meeting of the Adhesion Society Daytona Beach, Florida, [Details]
Carolan, D., Mc Namara, D., Petrovic, M., Ivankovic, A. and Murphy, N.; (2010) Fracture and Mechanical Properties of PCD and PCBN as a function of rate and temperature The 7th International Symposium on Impact Engineering [Details]
Mohan, J., Ramamoorthy, A., Murphy, N., Dowling, D. and Ivankovic, A.; (2010) The influence of plasma surface treatment on the fracture toughness of peel ply prepared bonded composite joints The 33rd Annual Meeting of the Adhesion Society [Details]
Carolan, D., Petrovic, M., Ivankovic, A. and Murphy, N.; (2010) Fracture Properties of PCBN as a Function of Loading Rate and Temperature The 9th International Conference on Fracture and Damage Mechanics [Details]
Ramamoorthy, A. , Mohan, J., Dowling, D., Murphy, N. and Ivankovic, A.; (2010) Enhanced carbon/epoxy composite fracture toughness achieved using atmospheric pressure plasma The 33rd Annual Meeting of the Adhesion Society [Details]
Cooper, V., Ivankovic, A., Karac, A., Murphy, N.; (2009) The Effect of Constraint on the Fracture Toughness of Adhesively Bonded Joints 32st Annual Meeting of the Adhesion Society Savannah, [Details]
Kanyanta, V., Ivankovic, A., Murphy, N., Byrne, G.; (2009) Performance of Syndril Cutters under Cyclic Impact Loading EMPS Innovation day University College Dublin, Ireland, [Details]
Carolan, D., Petrovic, M., Ivankovic, A. and Murphy, N. (2009) Mechanical and fracture properties of PCBN as a function of loading rate and temperature 6th International Congress of the Croatian Society of Mechanics - 6th ICCSM [Details]
Carolan, D., Petrovic, M., Ivankovic, A. and Murphy, N. (2009) Fracture properties of PCBN as a function of loading rate 8th International Conference on Fracture and Damage Mechanics [Details]
Mohan, J., Murphy, N. and Ivankovic, A. (2009) Mode-mixity in co-cured and secondary bonded composite joints 6th International Congress of the Croatian Society of Mechanics - 6th ICCSM [Details]
J. Mohan, N. Murphy and A. Ivankovic ; (2009) The Effect of Prepreg Storage Humidity on Co-Cured Composite Joints 32nd Annual Meeting of the Adhesion Society Savannah, Georgia, USA, [Details]
Mohan, J., Murphy, N., Ivankovic, A. and Dowling, D. P.; (2008) The effect of humidity levels on the fracture behaviour of co-cured composite joints 5th International Conference on Fracture of Polymers, Composites and Adhesives, Les DIablerets, Switzerland, 2008 [Details]
G. Pinter, A.J. Brunner, N. Murphy; (2008) Development of a Standardized Procedure for the Characterization of Interlaminar Crack Growth in Advanced Composites under Fatigue Mode I Loading Conditions 5th International  Conference on Fracture of Polymers, Composites and Adhesives [Details]
J. Mohan, N. Murphy, A. Ivankovic and D. Dowling; (2008) Effect of an atmospheric pressure plasma treatment and humidity levels on the interfacial fracture toughness of co-cured composite joints 17th European Conference on Fracture (ECF17) Brno, Czech Republic, [Details]
Murphy, N. and Ivankovic, A.; (2007) On the importance of the shape of the cohesive traction-separation law in dynamic fracture simulations Symosium on Mechanics of Materials: Perspectives and Recent Advances to honour the memory of K. B. Broberg, IMS, SNCM and ISSEC [Details]
Mohan, J., Carolan, D., Murphy, N., Ivankovic, A., and Dowling, D.; (2007) Influence of an atmospheric pressure plasma surface treatment on the interfacial fracture toughness of bonded composite joints 6th International Conference on Fracture & Damage Mechanics , 17-JUL-07 - 19-JUL-07 [Details]
Murphy, N. and Ivankovic, A.; (2006) An Investigation into Dynamic Crack Bifurcation in PMMA using a Cohesive Zone Model . In: Matejicek, F eds. 5th International Congress of Croatian Society of Mechanics Trogir, Croatia, , 21-SEP-06 - 23-SEP-06 , pp.177-178 [Details]
Murphy, N. and Ivankovic, A.; (2006) On the importance of the shape of the cohesive traction-separation law in dynamic fracture simulations ACME/ISSEC 2006 Belfast, [Details]
Murphy, N. and Ivankovic, A.; (2005) An experimental / numerical investigation of the dynamic fracture characteristics of PMMA 11th International Conference on Fracture (ICF XI) Turin, Italy, [Details]
Cooper, V., Ivankovic, A., Murphy, N. and Regan, S; (2005) Measurement of traction-separation curves for structural adhesives 9th International Conference on the Science and Technology of Adhesion and Adhesives (Adhesion '05) Oxford, UK, [Details]
Murphy, N, Ali, M. and Ivankovic, A.; (2005) Dynamic crack bifurcation in PMMA 4th International Conference on Fracture of Polymers, Composites and Adhesives Les Diablerets, Switzerland, [Details]
Murphy, N., Ivankovic, A. and Hillmansen, S. (2002) A numerical and experimental investigation of dynamic fracture of PMMA 10th ACME conference on Computational Mechanics in Engineering [Details]
Sheridan, J.T., Byrne, G., Connolly, P., Glennon, B., Heneghan, C., FitzPatrick, D., Finn, D., Gilchrist, M.D., Kieran, P., McLoughlin, F., Mulkeen, B., Murphy, N., OConnor, W., ODowd, R., OMalley, M., ORourke, M. & Reilly, R.,; (2002) Optics education within engineering at UCD SPIE 4876, Optics and Photonics Technologies and Applications Galway, Ireland, , 05-SEP-02 - 06-SEP-02 [Details]
Murphy, N. and Ivankovic, A. (1999) Dynamic fracture simulation of brittle materials characterised by microcrack-dominated failure mechanisms 7th ACME conference on Computational Mechanics in Engineering [Details]

Published Reports

Kanyanta, V., Ivankovic, A., Murphy, N., Dormer, A.; (2010) Fracture Behaviour of Syndril (PCD) Cutters Under Cyclic Impact Loading, Internal Report. Element Six, Ireland. [Details]
                         

Dissertations/Theses

Murphy, N.; (2007) Dynamic Fracture of PMMA: A Combined Experimental and Numerical Investigation. PhD Thesis. University College Dublin: Dissertations/Theses [Details]
                                                                                                         

Research

Research Interests

Mechanical and fracture characterization of a wide variety of materials as diverse as nano-toughened adhesives, fibre-reinforced composites, timber, and superhard cutting tool materials such as PCBN and PCD at a wide range of loading rates and temperatures. Much of our research focuses on the so-called structure-property relationship of materials where an attempt is made to link a macroscopic property such as the fracture toughness to the processes which are taking place at a microstructural level such as nano-void formation, growth and coalescence. In order to gain insight into material behaviour inside the fracture process zone, extensive use is made of analytical tools such as scanning electron microscopy in conjunction with computational models based on the non-linear finite element (FE) or finite volume (FV) numerical methods. These numerical simulations are typically carried out on our supercomputer which enables large problems to be solved in an efficient manner by distributing the calculations over many processors in parallel.

     

Teaching

 

Modules Coordinated

201700   MEEN50040     Mechanical Engineering: Seminar Series 1
201700   MEEN50030     Mechanical Engineering: Seminar Series 2
201700   MEEN30020     Mechanical Engineering: Mechanics of Solids II
201700   MEEN20040     Mechanical Engineering: Mechanics of Solids I
201700   MEEN40170     Mechanical Engineering: Mechanics of Solids III
201700   MEEN40060     Mechanical Engineering: Fracture Mechanics