A new temperature-dependent anisotropic constitutive model for predicting deformation and spring-back in warm deep drawing of automotive AA5086-H111 aluminium alloy sheet

被引：6
作者：
Liu, Wencheng [1 ]
Chen, Bernard K. [1 ]
Pang, Yong [1 ]
机构：
[1] Monash Univ, Dept Mech & Aerosp Engn, Clayton, Vic 3800, Australia
来源：
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2018年 / 97卷 / 9-12期
关键词：
Anisotropic yield function; Thermo-mechanical constitutive model; Warm deep drawing; Spring-back; Automotive sheet; NONASSOCIATED FLOW RULE; STRESS YIELD FUNCTION; ELEVATED-TEMPERATURES; PART; CRITERION; METALS; VALIDATION; BEHAVIOR; DESIGN;
D O I：
10.1007/s00170-018-2161-0
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A new temperature-dependent anisotropic hardening and yield function based on non-associated flow rule (NAFR) which accurately describes the anisotropic properties of aluminium alloy sheet metal is presented in this paper. This new NAFR coupling yield function has been successfully implemented in commercial FEM software Abaqus via user material subroutine UMAT to model warm forming of AA5086-H111 aluminium alloy and good agreement was found in the predicted earing profiles and spring-back compared with experiments. The new NAFR coupling yield function has been shown be superior to the existing Hill48 (associated flow rule) yield function making it suitable for FEA of warm deep drawing and design of tooling for various automotive panels and components.
引用
收藏
页码：3407 / 3421
页数：15
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