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An exponential hardening model for anisotropic sheet metals
Author(s) -
Hu Weilong
Publication year - 2000
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.200001226
Subject(s) - anisotropy , hardening (computing) , sheet metal , exponential function , strain hardening exponent , materials science , planar , constitutive equation , mechanics , structural engineering , metallurgy , composite material , mathematics , mathematical analysis , physics , engineering , finite element method , computer science , optics , computer graphics (images) , layer (electronics)
A new exponential hardening rule is brought forward to apply for planar anisotropy strain‐hardening sheet metals. Three exponential hardening relations measured along the rolling direction, 45°‐angle and 90°‐angle direction against rolling direction are just the special cases of this model. Based on this model to solve some plastic deformation problems for anisotropic strain‐hardening materials, some functions and calculating results, such as constitutive relations, forming limit characteristic, springback and other parameters associated with these types of materials, should be more likely to approach real states. So this anisotropic strain‐hardening model is very important for applying sheet metal forming simulation.