...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers. Part L, Journal of Materials: Design and Application >Numerical modelling of the asymmetric behaviour of concrete
【24h】

Numerical modelling of the asymmetric behaviour of concrete

机译：混凝土不对称行为的数值模型

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

This article analyses the conditions for the yield stress state of concrete subjected to generalised loads. For this purpose, a limit stress state criterion, initially developed for the assessment of magnesium and respective alloys, is here adapted and implemented as a simulation model to assess the structural integrity of concrete components. In fact, materials as magnesium and concrete exhibit a similar mechanical behaviour, presenting a non-symmetric limit state domain for biaxial stress combinations, where it is observed a considerably larger strength to yield or rupture in a compression stress state than in a tensile one. The Cazacu yield stress state criterion has shown to be an accurate and realistic model to define the ultimate strength, either of concrete and magnesium alloys, as mentioned. The Cazacu criterion was implemented in a finite element program as a 'user-defined' subroutine. The numerical validation of that criterion was carried out on adjusting its limit stress state points to corresponding ones obtained by experiments of standard tensile or compression tests of concrete test specimens.
机译：本文分析了经受广义载荷的混凝土屈服应力状态的条件。为此目的，最初开发用于评估镁和各个合金的极限应力状态标准，这里适用和实现为仿真模型，以评估混凝土组件的结构完整性。实际上，材料作为镁和混凝土的材料表现出类似的机械行为，呈现非对称极限状态域进行双轴应力组合，在那里在压缩应力状态下观察到相当大的强度，而不是在拉伸稳定状态下产生或破裂。如上所述，CAZACU产量应力状态标准是一种准确和现实的模型，可以定义混凝土和镁合金的最终强度。 Cazacu标准在有限元程序中实现为“用户定义的”子程序。该标准的数值验证是在调节其极限应力状态点到通过实验通过混凝土试样的标准拉伸或压缩试验而获得的相应验证。

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