Finite element analysis of plastic deformation in shear punch test

摘要

Strain level and mode of deformation in shear punch testing (SPT) was investigated by finite element method (FEM). The value of equivalent plastic strain was related to the punch displacement (d), punch-die clearance (W), and sample thickness (t) by the relationship of epsilon alpha d root tW . Based on the numerical simulation, it was inferred that the deformation mode depends on the clearance and thickness. It was shown that W/t = 0.1 corresponds to the pure shear mode for AISI 304L austenitic stainless steel, for which the axial components of the plastic strain tend to zero. These findings were found to be consistent with experimental observations and can be utilized in future studies on the mechanical properties and microstructure evolution of materials. (c) 2020 Elsevier B.V. All rights reserved.