期刊文献+

Drucker-Prager材料一致率型本构模型 被引量:22

A DRUCKER-PRAGER CONSISTENT RATE-DEPENDENT MODEL
下载PDF
导出
摘要 根据一致粘塑性模型理论,结合所做的混凝土单轴动力特性试验,对常用的混凝土本构模型Drucker-Prager模型进行改进,引入应变率的影响,推导了Drucker-Prager材料的一致率型本构模型;并与试验的应力应变曲线进行比较,结果表明本文模型能够较好地反映混凝土的动力特性;最后,通过对一平面梁进行计算,并与线弹性及率无关塑性结果进行比较,结果表明考虑了应变率的影响后梁的动力特性发生了较大的变化。 According to viscoplastic consistency model and the dynamic experimental results of concrete, a Drucker-Prager consistent rate-dependent model is set up. It evolves from the classical Drucker-Prager model by incorporating the effect of strain rate on concrete. Compared with experiment results, the model can predict the dynamic behavior of concrete accurately. A plane beam is studied using the model. The results are compared with those of the linear elastic model and rate-independent plastic model. The comparison shows that the dynamic behavior of the beam exhibits significant change when the effect of strain rate is considered.
出处 《工程力学》 EI CSCD 北大核心 2003年第4期147-151,共5页 Engineering Mechanics
基金 国家自然科学基金资助重点项目(50139010)
关键词 粘塑性 率相关 应变率 内变量 动力反应 viscoplastic rate-dependent strain rate internal variable dynamic response
  • 相关文献

参考文献5

  • 1Wang W.Stationary and propagative instabilities in meatls a computational point of view[D].PhD.TU Delft, Netherlands, 1997.
  • 2Winnicke C J Pearce, N Bicanic.Viscoplastic hoffman consistency model for concrete.computers and structures[J].2001, 79: 7-19.
  • 3Carosio, K.Willan, and G.Etse.On the consistency of viscoplastic formulations[J].International Journal of Solids and Structures, 2000, 37: 7349-7369.
  • 4Francisco-Javier Montans.Implicit algorithms for -plasticity[J].Computer Methods in Applied Mechanics and Engineering.2000, 189: 673-700.
  • 5肖诗云,林皋,王哲,逯静洲.应变率对混凝土抗拉特性影响[J].大连理工大学学报,2001,41(6):721-725. 被引量:86

二级参考文献2

  • 1尚仁杰.混凝土动态本构行为研究[M].大连:大连理工大学,1994..
  • 2尚仁杰,学位论文,1994年

共引文献85

同被引文献355

引证文献22

二级引证文献133

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