Mesh-free simulations of shear banding in large deformation
نویسندگان
چکیده
Mesh-free approximation is used in numerical simulations of strain localization under large deformation. An explicit displacement based mesh-free formulation is used in both two-dimensional and three-dimensional computations. The spatial isotropy of mesh-free interpolant is demonstrated through the numerical example to show that mesh-free methods possess certain ``mesh objectivity'' that alleviates the notorious mesh-alignment sensitivity associated with numerical simulation of strain localization. It is also demonstrated in the paper that mesh-free interpolants can accurately capture ®nite shear deformation under large mesh distortion without recourse to special mesh design and remeshing. Moreover, curved shear band surface and multiple shear band interactions are captured in numerical simulations. Ó 2000 Published by Elsevier Science Ltd.
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