A comparative study of two types of gradient theory of plasticity

Sergei Alexandrov, Yeau Ren Jeng

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

The objective of the present paper is to show that predictions of the conventional strain gradient theories do not coincide with some general physical expectations when large strains and geometry changes should be considered. As an alternative, it is proposed to use strain rate gradient theories of plasticity. One possible theory of this type is formulated as a formal modification of a strain gradient theory of plasticity. The problem of hollow sphere expansion at large strains is solved for both the strain gradient and strain rate gradient theories of plasticity. Comparison of these solutions reveals advantages of the strain rate gradient theory of plasticity for a class of problems.

原文English
主出版物標題Innovation in Materials Science and Emerging Technology
頁面485-488
頁數4
DOIs
出版狀態Published - 2012
事件1st International Conference on Engineering and Technology Innovation, ICETI 2011 - Kenting, Pingtung, Taiwan
持續時間: 2011 十一月 112011 十一月 15

出版系列

名字Applied Mechanics and Materials
145
ISSN(列印)1660-9336
ISSN(電子)1662-7482

Other

Other1st International Conference on Engineering and Technology Innovation, ICETI 2011
國家Taiwan
城市Kenting, Pingtung
期間11-11-1111-11-15

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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