Research

Specialisation: Computational solid mechanics, small-scale plasticity, dislocation dynamics

Comparing the dwell-sensitivity of two different Ti alloy microstructures. (From work with colleagues at Imperial College London; please click here to view the article)

My research focuses on using planar Discrete Dislocation Plasticity simulations to investigate the micro-mechanism of various plastic deformation phenomena, including the Bauschinger effect in small, confined volumes; dislocation mobility effects in BCC materials; and strain rate and dwell sensitivity in Titanium alloys used in the aerospace industry.

During my work, I have also developed expertise in the X-FEM method and crystal plasticity FE modelling.

You can find a list of my publications on Google Scholar and in the list below.

  1. Waheed, S., Zheng, Z., Balint, D. S. and Dunne, F. P. E., (2019), “Microstructural effects on strain rate and dwell sensitivity in dual phase titanium alloys”, Acta Mater. 162:136-148. (open access link)
  2. Zheng, Z., Waheed, S., Balint, D. S. and Dunne, F. P. E., (2018), “Slip transfer across phase boundaries in dual phase titanium alloy and the effect on strain rate sensitivity”, Int. J. Plast. 104:23-28. (open access link)
  3. Waheed, S., Hao, R. , Zheng, Z., Wheeler, J. M., Michler, J., Balint, D. S. and Giuliani, F., (2018), “Temperature- dependent plastic hysteresis in highly confined polycrystalline Nb films”, Model. Simul. Mater. Sc. Eng. 26:025005. (access to postprint)
  4. Waheed, S., Butcher, A. L. and Oyen, M. L., (2018), “The viscoelastic response of electrospun poly (vinyl alcohol) mats”, J. Mech. Behav. Biomed. Mater. 77:383-388. (open access link)
  5. Patel, M.*, Waheed, S.*, Wenman, M. R., Sutton, A. P. and Balint, D. S., (2017), “Discrete Dislocation Plasticity Modelling of Hydrides in Zirconium under Thermal Cycling”, MRS Advances 2(55):3353-3358 (*equal first authorship). (access to postprint)
  6. Waheed, S., Hao, R., Bhowmik, A., Balint, D. S. and Giuliani, F., (2017), “A unifying scaling for the Bauschinger effect in highly confined thin films: a discrete dislocation plasticity study”, Model. Simul. Mater. Sc. Eng. 25:054003. (access to postprint)