node/add/imageI propose to investigate an elastic-viscoplastic constitutive model proposed by Anand and Gurtin [1] for the large deformation of amorphous solids. Specifically, I will present the constitutive framework proposed for elastic-plastic amorphous materials, I will implement the constitutive equations into Abaqus/Explicit, and I will compare numerical results with experimental results for polycarbonate [2].

[1] Anand, L., Gurtin, M.E., 2003. A theory of amorphous solids undergoing large deformations, with application to polymeric glasses. International Journal of Solids and Structures 40, 1465-1487.

[2] Boyce, M. C., Arruda, E. M., 1990. An experimental and analytical investigation of the large strain compressive and tensile response of glassy polymers. Polymer Engineering and Science 30 (20), 1288-1298.

Abaqus help Acknowledgements:

Anastassia Paskaleva

Petch Jearanaisilawong