Modeling and simulation framework for dynamic strain localization in elasto-viscoplastic metallic materials subject to large deformations

• Published in: International journal of plasticity Vol. 88; pp. 1 - 26
• Main Authors: Mourad, H.M., Bronkhorst, C.A., Livescu, V., Plohr, J.N., Cerreta, E.K.
• Format: Journal Article
• Language: English
• Published: New York Elsevier Ltd 01.01.2017; Elsevier BV
• Subjects: Adiabatic flow; Adiabatic shear bands; B. Elastic-viscoplastic material; B. Finite strain; Banding; C. Finite elements; Computation; Computational mathematics; Computer simulation; Deformation; Deformation mechanisms; Dissipation; Dynamic recrystallization; Edge dislocations; Finite element analysis; Finite element method; Mathematical analysis; Mathematical models; Photomicrographs; Plastic deformation; Recrystallization; Shear; Shear localization; Shear strength; Softening; Split Hopkinson pressure bars; Stainless steel; Stainless steels; State variable; Strain localization; Strain rate; Studies; Time integration; Work hardening; Yield strength; B. Finite strain; C. Finite elements; Adiabatic shear bands; B. Elastic-viscoplastic material

This paper describes a theoretical and computational framework for the treatment of adiabatic shear band formation in rate-sensitive polycrystalline metallic materials. From a computational perspective, accurate representation of strain localization behavior has been a long-standing challenge. In ad...