Viscoplastic constitutive modeling of anisotropic damage under nonproportional loading

被引：16

作者：

Chow, CL ^{[1
]}

Yang, XJ

Chu, E

机构：

[1] Univ Michigan, Dept Mech Engn, Dearborn, MI 48128 USA

[2] Alcoa Inc, Alcoa Tech Ctr, Forming & Machining Platform, Alcoa Ctr, PA 15069 USA

来源：

JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME | 2001年 / 123卷 / 04期

关键词：

D O I：

10.1115/1.1395575

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Based on the theory of damage mechanics, a viscoplastic constitutive modeling of anisotropic damage for the prediction of forming limit curve (FLC) is developed. The model takes into account the effect of rotation of principal damage coordinates on the deformation and damage behaviors. With the aid of the damage viscoplastic potential, the damage evolution equations are established. Based on a proposed damage criterion for localized necking, the model is employed to predict the FLC of aluminum 6111-T4 sheet alloy. The predicted results agree well with those determined experimentally.

引用

页码：403 / 408

页数：6

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