期刊文献+

Refining constitutive relation by integration of finite element simulations and Gleeble experiments

分享 导出
摘要 Thermo-mechanical coupled finite element calculations were carried out to simulate the Gleeble compression of the samples of a titanium alloy(Ti60), and the results are analyzed and compared with the actual compression tests conducted on a Gleeble 3800 thermo-mechanical simulator. The changes in temperature, stress and strain distribution in the samples and the source of error on the constitutive relations from Gleeble hot compression test were analyzed in detail. Both simulations and experiments showed that the temperature distribution in the specimen is not uniform during hot compression, resulting in significant deformation inhomogeneity and non-ignorable error in the flow stress strain relation,invalidating the uniform strain assumption commonly assumed when extracting the constitutive relation from Gleeble tests. Based on the finite element simulations with iterative corrections, we propose a scheme to refine the constitutive relations from Gleeble tests.
出处 《材料科学技术学报:英文版》 SCIE EI CAS CSCD 2019年第6期1039-1043,共5页 Journal of Materials Science & Technology
基金 the National Key Research and Development Program of China(2016YFB0701300,2011CB606404) the CAS informatization Program(XXH13506-304) the National Natural Science Foundation of China(51171195,50911130367) the CAS Shenyang Supercomputing Center.
作者简介 Corresponding author:D.S. Xu,E-mail address: dsxu@imr.ac.cn .
  • 相关文献
投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈