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Dynamic spherical cavity expansion in Gurson materials with uniform and non-uniform distributions of porosity
[post]
2020
unpublished
This paper investigates both theoretically and using finite elements the elastoplastic field induced by a pressurizedspherical cavity expanding dynamically in an infinite medium modelled using the Gurson-Tvergaard-Needleman porous plasticity approach. The theoretical model, which assumes that the porosity is uniformly distributed in the material and the cavitation fields are self-similar, incorporates artificial viscous stresses into the original formulation of Cohen and Durban (2013b) to
doi:10.31224/osf.io/5ephf
fatcat:svd4y4ijrnbqdo7bcn2z4l5b6i