• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Mechanical Science and Technology >Effect of damage evaluation method and cyclic hardening models on strain-based fatigue assessment to a piping system under seismic loads
【24h】

Effect of damage evaluation method and cyclic hardening models on strain-based fatigue assessment to a piping system under seismic loads

机译：损伤评价方法与循环硬化模型对地震载荷下管道系统的应变疲劳评估的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, strain-based damage assessment based on elastic-plastic FE analysis was carried out for the piping system test under seismic loads conducted at Bhabha Atomic Research Center (BARC, India) to suggest relevant damage evlaution method and cyclic hardening model. For the damage evaluation method, the cumulative plastic damage and cumulative fatigue damage assessment methods, suggested in ASME B&PV Sec. VIII and Sec. III, respectively, were considered. For the FE analysis, hybrid models consisting of the beam and solid elements were used, validated by comparing with the results using full solid models. To simulate the cyclic hardening behavior of the material, the bi-linear kinematic hardening model suggested in the JSME Code case and the Chaboche kinematic hardening model were considered. By comparing with test results, it is shown that predicted failure cycles are about 33-C;53 % of the test result, and the use of the cumulative plastic damage method is found to be more conservative than the cumulative fatigue damage method. The effect of the hardening model on evaluation results is found to be not so significant.
机译：本文采用基于弹性塑料Fe分析的基于菌株的损伤评估进行了在Bhabha原子研究中心（印度Barc，Barc）进行的地震载荷下进行的管道系统测试，提出了相关损伤Evlaute方法和循环硬化模型。对于损伤评估方法，ASME B＆PV SEC中的累积塑性损伤和累积疲劳损伤评估方法。 viii和sec。 III分别被考虑。对于FE分析，使用由光束和固体元件组成的混合模型，通过使用全固体模型与结果进行比较。为了模拟材料的循环硬化行为，考虑了JSME码案例和Chaboche运动硬化模型中建议的双线性运动硬化模型。通过与测试结果进行比较，显示预测失效循环约为33-c;测试结果的53％，并且发现累积塑性损伤方法的使用比累积疲劳损伤方法更保守。硬化模型对评估结果的影响是不太重要的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号