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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. |
| 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. |
| Sponsor : Irish Research Council for Science Engineering and Technology (IRCSET) Title : Development of Next Generation Polycrystalline Diamond Start Date / End Date : 01-OCT-11 / 30-SEP-14 |
| Sponsor : Irish Research Council for Science Engineering and Technology (IRCSET) Title : Mechanical & Fracture Characterization of Rubber-Toughened Cyanoacrylate Adhesive Joints. Start Date / End Date : 01-JAN-12 / 31-DEC-14 |
| Sponsor : Henkel Title : Henkel scholarships for David McAuliffe and Tatiana Stefanov Start Date / End Date : 01-OCT-11 / 31-MAR-12 |
| Sponsor : Irish Research Council for Science Engineering and Technology (IRCSET) Title : Fracture Toughness Characterization of Structural Adhesives Start Date / End Date : 01-OCT-08 / 30-SEP-11 |
| Sponsor : Irish Research Council for Science Engineering and Technology (IRCSET) Title : Composite-to-composite Bonding Start Date / End Date : 01-NOV-05 / 30-APR-09 |
| 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. [Details] |
| 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] |
| 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] |
| 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] |
| 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. [Details] |
| Mohan, J., Ivankovic, A. and Murphy, N. (2012) 'Effect of prepreg storage humidity on the mixed-mode fracture toughness of a co-cured composite joint'. Composites Part A: Applied Science and Manufacturing, . [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) 'A Combined Experimental-Numerical Investigation of Fracture of Polycrystalline Cubic Boron Nitride'. Engineering Fracture Mechanics, . [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] | |||||||||
| 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. [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] | |||||||||
| 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] | |||||||||
| 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] | |||||||||
| Carolan, D., Ivankovic, A. and Murphy, N. (2012) 'Numerical investigation into dynamic fracture of PCBN'. Key Engineering Materials, 488-489 :553-556. [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. [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] | |||||||||
| 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. [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] | |||||||||
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| 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] |
| 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) Micro-Mechanical Modeling of Nano-Toughened Adhesives 6th OpenFOAM Workshop Penn State University, 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 21st International Workshop on Computational Mechanics of Materials (IWCMM) Limerick, Ireland, [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 34th Annual Meeting of the Adhesion Society Savannah, Georgia, USA, [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] | |||||||||
| 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] | |||||||||
| 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] | |||||||||
| 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] | |||||||||
| 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] | |||||||||
| 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., Murphy, N.; (2009) The Effect of Constraint on the Fracture Toughness of Adhesively Bonded Joints 32st Annual Meeting of the Adhesion Society Savannah, [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] | |||||||||
| 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] | |||||||||
| 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] | |||||||||
| 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 Proceedings of SPIE 4876, Optics and Photonics Technologies and Applications Galway, Ireland, , 05-SEP-02 - 06-SEP-02 [Details] | |||||||||
| J. Mohan, N. Murphy and A. Ivankovic ; (2009) The Effect of Prepreg Storage Humidity on Co-Cured Composite Joints Proceedings of the 32nd Annual Meeting of the Adhesion Society Savannah, Georgia, USA, [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 Proceedings of the 17th European Conference on Fracture (ECF17) Brno, Czech Republic, [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 Proceedings of the 5th International Conference on Fracture of Polymers, Composites and Adhesives [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] | |||||||||
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| Murphy, N.; (2007) Dynamic Fracture of PMMA: A Combined Experimental and Numerical Investigation. PhD Thesis. University College Dublin: Dissertations/Theses [Details] |
| Patent 1108967.9 : Superhard Structure, Tool Element and Method of Making Same |
| Committee : European Structural Integrity Society (ESIS) Technical Committee 4 |
| Committee : National Standards Association of Ireland (NSAI) Committee on Goalpost Safety |
| 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: |
| The majority of current research activities are in collaboration with Prof Alojz Ivankovic, who supervised my own recent PhD thesis in the are of dynamic fracture of brittle polymers. We are involved in a wide range of interesting research projects from the fracture characteristics of structural adhesives and composite materials to those of cutting tools for the drilling and machining industries. We are also collaborating on bioengineering topics such as damage evolution in lungs subjected to dynamic loading conditions. |
| Recent collaborators include Dr D. R. Moore and Prof. J. G. Williams of the Mechanical Engineering Department, Imperial College London.This research is focused on the development of the Mandrel Peel Test for determination of the fracture energy of flexible laminates. |
