压力容器2016，Vol.33Issue(7)：10-17,8.DOI:10.3969/j.issn.1001-4837.2016.07.003
基于弹性核评定准则的压力容器弹塑性棘轮分析
Elastic-plastic Ratcheting Analysis for Pressure Vessels Based on Elastic Core Evaluation Criterion
沈軻 1陈志伟 2刘应华1
作者信息
- 1. 清华大学 工程力学系，北京 100084
- 2. 全国锅炉压力容器标准化技术委员会，北京 100013
- 折叠
摘要
Abstract
ASME Ⅷ-2 Code(2007 and later)provided an elastic-plastic analysis method and three eval-uation criteria for ratcheting failure.Elastic core criterion,one of the three,has been already well applied in 1 D model.In this paper,it was shown that how elastic core criterion together with FEA was applied to complex structure under various loading through a typical example.On the basis of fully understanding of elastic core criterion,the relationship among these three criterions was discussed.After the summarization of these three checking criteria,direct methods were proposed for the future revision of Chinese code of design by analysis to satisfy fierce demand from nuclear power industry.The paper aimed to provide valua-ble reference for readers and reasonable suggestion for the code revision focusing on the topic of elastic-plastic ratcheting analysis.关键词
棘轮/弹塑性分析/弹性核/有限元分析/直接法Key words
ratcheting/elastic-plastic analysis/elastic core/finite element analysis(FEA)/direct method分类
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沈軻,陈志伟,刘应华..基于弹性核评定准则的压力容器弹塑性棘轮分析[J].压力容器,2016,33(7):10-17,8.
