New yield criteria for isotropic and textured metallic materials

被引：56
|
作者：
Cazacu, Oana [1 ]
机构：
[1] Univ Florida, Dept Mech & Aerosp Engn, REEF, 1350 N Poquito Rd, Shalimar, FL 32579 USA
来源：
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2018年 / 139卷
关键词：
Yield function; Plastic anisotropy; Lode angle; Textured sheets; Aluminum alloys; SHEETS;
D O I：
10.1016/j.ijsolstr.2018.01.036
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this paper a new isotropic criterion that describes well yielding of randomly oriented face-centered polycrystalline metallic materials is proposed. The extension of this criterion such as to describe orthotropy is developed using generalized invariants of the stress deviator. This new orthotropic criterion is general and applicable to three-dimensional stress states. The procedure for the identification of the material parameters is outlined. Illustration of the predictive capabilities of the new orthotropic is demonstrated through comparison between the model predictions and data on aluminum sheet samples. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：200 / 210
页数：11
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