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Applied Mathematics and Mechanics (English Edition) ›› 1990, Vol. 11 ›› Issue (3): 247-253.

• 论文 • 上一篇    下一篇

A STUDY ON YIELD AND FLOW OF ORTHOTROPIC MATERIALS

袁祖培1, 郑耀2   

  1. 1. Dept. of Engrg. Mechanics, Haerbin Institute of Technology, Haerbin;
    2. Dept. of Civil Engrg., Zhejiang University, Hangzhou
  • 收稿日期:1989-02-27 出版日期:1990-03-18 发布日期:1990-03-18

A STUDY ON YIELD AND FLOW OF ORTHOTROPIC MATERIALS

Yuan Zu-pei1, Zheng Yao2   

  1. 1. Dept. of Engrg. Mechanics, Haerbin Institute of Technology, Haerbin;
    2. Dept. of Civil Engrg., Zhejiang University, Hangzhou
  • Received:1989-02-27 Online:1990-03-18 Published:1990-03-18

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摘要： On the assumption that the yield criterion of orthotropic materials is isomorphic with Huber-Mises criterion of isotropic materials, we put forward a dimensionless stress yield criterion, and obtained the associated plastic flow law. Using experimental stress-strain curves in various simple stress states, generalized effective stress-strain formulae may be derived correspondingly in various forms.

关键词: boundary value problem, critical point, invariant sets, retracting property

Abstract: On the assumption that the yield criterion of orthotropic materials is isomorphic with Huber-Mises criterion of isotropic materials, we put forward a dimensionless stress yield criterion, and obtained the associated plastic flow law. Using experimental stress-strain curves in various simple stress states, generalized effective stress-strain formulae may be derived correspondingly in various forms.

Key words: boundary value problem, critical point, invariant sets, retracting property

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