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School of Engineering and Computing Sciences (ECS)

Profiles

Dr Will Coombs, MEng PhD

Telephone: +44 (0) 191 33 42516
Room number: E213 Christopherson building

(email at w.m.coombs@durham.ac.uk)

Biography

Will Coombs is an Associate Professor in the Mechanics Research Group in the School of Engineering and Computing Sciences (SECS). He graduated in Civil Engineering with a first class MEng honors degree from Durham University in 2008. Following his undergraduate studies, Will began a PhD at Durham University within the School of Engineering and Computing Sciences. He successfully completed in 2011. The research conducted during this time concentrated on the theoretical development and numerical implementation of finite deformation constitutive models for pressure-sensitive particulate geomaterials.

Will's research remains in the area of computational mechanics, focused on: (i) material (or constitutive) models for geomaterials, (ii) finite-deformation mechanics, (iii) non-linear finite-elements, (iv) non-mesh-based numerical methods and, more recently, (v) fracture. He has an established track record of publishing high quality journal papers, mainly targeting the top journal in the computational mechanics area (Computer Methods in Applied Mechanics and Engineering).

Research

In more detail, Will's primary research interest surrounds inelastic constitutive modelling of geomaterials subjected to finite deformations. Included within this is the theoretical development and numerical implementation of a range of material constitutive models, from simple, rapid and robust isotropic models to complex anisotropic material behaviour frameworks. In addition he has developed a series of cutting-edge, compact and freely available finite-element scripts. His research continues on the development on constitutive models for a variety of engineering materials, including complex particulate behaviour. One aim in this area is relating the observed material behaviour to tangible and measurable material properties and fabric constituents whilst respecting the fundamental laws of thermodynamics. 

Teaching

Will currently teaches in the following areas: finite-element method, non-linear computational mechanics and contact mechanics. In the past he has also taught courses on plasticity for metal forming, structural analysis, land surveying and Critical State soil mechanics as well as coursework in the areas of finite-element analysis, plasticity, contact and geometric non-linearity. 

Research Groups

School of Engineering and Computing Sciences Mechanics research group.

Research Interests

  • Elasto-plasticity
  • Finite deformation mechanics
  • Finite-elements
  • Fracture prediction
  • Geomaterials
  • Hyperplasticity
  • Material point method
  • Stress integration

Selected Publications

Journal Article

Conference Paper

  • Ghaffari Motlagh, Y. & Coombs, W.M. (2017), An implicit high-order material point method, in Rohe, A., Soga, K., Teunissen, H. & Coelho, B.Z. eds, 175: 1st International Conference on the Material Point Method (MPM 2017). Delft, Netherlands, Elsevier, 8-13.
  • Charlton, T.J., Coombs, W.M. & Augarde, C.E. (2017), Gradient elasto-plasticity with the generalised interpolation material point method, in Rohe, A., Soga, K., Teunissen, H. & Coelho, B.Z. eds, 175: 1st International Conference on the Material Point Method (MPM 2017). Delft, Netherlands, Elsevier, 110-115.
  • Wang, L., Coombs, W.M., Augarde, C.E., Brown, M., Knappett, J., Brennan, A., Richards, D. & Blake, A. (2017), Modelling screwpile installation using the MPM, in Rohe, A., Soga, K., Teunissen, H. & Coelho, B.Z. eds, 175: 1st International Conference on the Material Point Method (MPM 2017). Delft, Netherlands, Elsevier, 124-132.
  • Cortis, M., Coombs, W.M., Augarde, C.E., Robinson, S., Brown, M. & Brennan, A. (2017), Modelling seabed ploughing using the material point method, in Rohe, A. , Soga, K. , Teunissen, H. & Coelho, B.Z. eds, 175: 1st International Conference on the Material Point Method. Delft, The Netherlands, Elsevier, 1-7.
  • Ghaffari Motlagh, Y. & Coombs, W.M. (2016), A high-order material point method, ACME - UK 2016 24th Conference of the Association for Computational Mechanics in Engineering. Cardiff, UK, Cardiff University, Cardiff, 352-355.
  • Ghaffari Motlagh, Y. & Coombs, W.M. (2016), An implicit time integration high-order material point method for small and large deformation problems: formulation and analysis within the isogeometric framework, VII European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2016. Crete, Greece.
  • Robinson, Scott, Brown, Mike J., Brennan, Andrew J., Cortis, Michael, Augarde, Charles E. & Coombs, William M. (2016), Development of low cost 3D soil surface scanning for physical modelling, 3rd European Conference on Physical Modelling in Geotechnics (Eurofuge 2016),. Nantes, France.
  • Mukwiri, R.A., Ghaffari Motlagh, Y., Coombs, W.M. & Augarde, C.E. (2016), Energy dissipation in granular material under 1D compression, ACME - UK 2016 24th Conference of the Association for Computational Mechanics in Engineering. Cardiff, UK, Cardiff University, Cardiff, 231-234.
  • Charlton, T.J, Coombs, W.M. & Augarde, C.E. (2016), Gradient elasticity with the material point method, VII European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2016. Crete, Greece.
  • Charlton, T.J., Coombs, W.M. & Augarde, C.E. (2016), Gradient elasticity with the material point method, ACME - UK 2016 24th Conference of the Association for Computational Mechanics in Engineering. Cardiff, UK, Cardiff University, Cardiff, 112-115.
  • Cortis, M., Coombs, W.M. & Augarde, C.E. (2016), Implicit essential boundaries in the Material Point Method, 24th UK Conference of the Association for Computational Mechanics in Engineering. Cardiff, UK, Cardiff University, Cardiff, 116-119.
  • Robinson, S, Brown, M.J. Brennan, A.J., Cortis, M., Augarde, C.E. & Coombs, W.M. (2016), Improving seabed cable plough performance for offshore renewable energy, in Guedes Soares, C. eds, 2nd International Conference on Renewable Energies offshore. Lisbon, Spain, CRC Press, 1-7.
  • Coombs, W.M. (2016), On the use of Plastic Inserts in Prestressed Railway Components, in Pombo, J. eds, Railways 2016 - The Third International Conference on Railway Technology: Research, Development and Maintenance. Cagliari, Sardinia, Civil-Comp Press, Stirling, 330.
  • Adams, T., Giani, S. & Coombs, W.M. (2016), Topology optimisation using level set methods and the discontinuous Galerkin method, ACME - UK 2016 24th Conference of the Association for Computational Mechanics in Engineering. Cardiff, UK, Cardiff University, Cardiff, 6-9.
  • Bird, R.E., Coombs, W.M. & Giani, S. (2016), Two dimensional configurational-force-driven crack propagation using the discontinuous Galerkin method with rp-adaptivity,  ACME - UK 2016 24th Conference of the Association for Computational Mechanics in Engineering. Cardiff, UK, Cardiff University, Cardiff, 137-140.
  • Coombs, W.M. (2015), On isogeometric yield envelopes, COMPLAS 2015: XIII International Conference on Computational Plasticity: Fundamentals and Applications. Barcelona, Spain, Barcelona.
  • Charlton, T.J., Coombs, W.M. & Augarde, C.E. (2015), On the implicit implementation of the Generalised Interpolation Material Point method, in Gil, Antonio J. & Sevilla, Rubén eds, 23rd Conference of the Association for Computational Mechanics in Engineering, ACME-UK 2015. Swansea, Wales, UK, Swansea University, Swansea, 413-416.
  • Charlton, T.J., Coombs, W.M. & Augarde, C.E. (2014), A review of the Material Point Method and its links to other computational methods, in Javadi, A. & Hussain, M.S. eds, 22nd UK National Conference of the Association of Computational Mechanics in Engineering (ACME). Exeter, University of Exeter, Exeter, 17-20.
  • Coombs, W.M., Crouch, R.S. & Geomechanics from Micro to Macro (2014), Fabric anisotropy & DEM informed two-surface hyperplasticity: constitutive formulation, asymptotic states & experimental validation, in Soga, K., Kumar, K., Biscontin, G. & Kuo, M. eds, TC105 ISSMGE international symposium on Geomechanics from Micro to Macro. Cambridge, UK, CRC Press, Cambridge, 777-782.
  • Ullah, Z., Augarde, C.E. & Coombs, W.M (2013), Three-dimensional FE-EFGM adaptive coupling and its applications in the nonlinear adaptive analysis, in Osman, A, Akkerman, I, Augarde, CE, Coombs, WM, Crouch, R, Koziara, T & Trevelyan, J eds, CM13. Durham, UK, School of Engineering and Computing Sciences, Durham University, Durham.
  • Coombs, W.M. (2013), UNIQUE CRITICAL STATE SINGLE-SURFACE ANISOTROPIC HYPERPLASTICITY, in E. Onate D.R.J. Owen, D. Peric & B. Suarez eds, XII International Conference on Computational Plasticity. Fundamentals and Applications (COMPLAS XII). Barcelona, Spain, Barcelona.
  • Coombs, W.M. (2013), Unique Critical State single-surface anisotropic hyperplasticity, in Onate, E., Owen, D.R.J, Peric, D & Suarez, B eds, XII International Conference on Computational Plasticity. Fundamentals and Applications. COMPLAS XII. Barcelona, Spain, Barcelona.
  • Coombs, W.M., Crouch, R.S. & Heaney, C.E. (2012), Plane-strain Mohr-Coulomb inelasticity, in Yang, Z.J. eds, 20th UK National Conference of the Association for Computational Mechanics in Engineering (ACME). Manchester, UK, Manchester, 259-262.
  • Coombs, W.M., Crouch, R.S. & Augarde, C.E. (2011), On the f fields of inadmissible stress space, in Oñate, E, Owen, DRJ, Peric, D & Suárez, B eds, Computational Plasticity XI: Fundamentals and Applications (COMPLAS XI). Barcelona, Spain, International Center for Numerical Methods in Engineering (CIMNE), Barcelona.
  • Coombs, W.M. & Crouch, R.S. (2011), Reuleaux plasticity: improving Mohr-Coulomb and Drucker-Prager, in Barends, F.B.J. Breedeveld, J., Brinkgreve, R.B.J., Korff, M. & van Paassen, L.A. eds, Geotechnical Engineering: New Horizons. Proceedings of the 21st European Young Geotechnical Engineers' Conference. Rotterdam, the Netherlands, IOS Press, Rotterdam, 241-247.
  • Coombs, W.M., Crouch, R.S. & Augarde, C.E. (2011), Unique Critical State Hyperplasticity, in Laghrouche, O., EL Kacimi, A. Woodward, P. & Medero, G. eds, Proceedings of the 19th UK National Conference of the Association for Computational Mechanics in Engineering. Heriot-Watt University, Edinburgh, Heriot-Watt University, Edinburgh, 49-52.
  • Coombs, W.M., Crouch, R.S. & Augarde, C.E. (2010), 70-line 3D finite deformation elastoplastic finite-element code, in Benz, T. & Nordal, S. eds, 7th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE). Trondheim, Norway, Taylor & Francis Group, Trondheim, 151-156.
  • Heaney, C.E., Augarde, C.E., Deeks, A.J., Coombs, W.M. & Crouch, R.S. (2010), Advances in meshless methods with application to geotechnics, in Benz, T. & Nordal, S. eds, Numerical Methods in Geotechnical Engineering 7th European Conference on Numerical Methods in Geotechnical Engineering. Trondheim, Norway, CRC Press/Balkema, Trondheim, 239-244.
  • Coombs, W.M., Crouch, R.S. & Augarde, C.E. (2010), On the use of Reuleaux plasticity for geometric non-linear analysis, in Zervos, A. eds, 18th UK Conference on Computational Mechanics (ACME). Southampton, England, Southampton, 113-116.
  • Coombs, W.M., Crouch, R.S. & Augarde, C.E. (2009), Influence of Lode Angle Dependency on the Critical State for Rotational Plasticity, in Oñate, E., Owen, D.R.J. & Suárez, B. eds, Computational Plasticity X: Fundamentals and Applications (COMPLAS X). Barcelona, Spain, Barcelona.
  • Coombs, W.M., Crouch, R.S. & Augarde, C.E. (2009), On the necessity for rotational yielding in anisotropic plasticity, in Sansour, C. eds, 17th UK Conference on Computational Mechanics (ACME). Nottingham, England, Nottingham, 345-348.

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