...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Solids and Structures >A COMPOSITE PLASTICITY MODEL FOR CONCRETE
【24h】

A COMPOSITE PLASTICITY MODEL FOR CONCRETE

机译：混凝土的复合塑性模型

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

A composite yield function is used to describe the behavior of plain and reinforced concrete in biaxial stress under monotonic loading conditions. A Rankine yield criterion is used to monitor the in-plane tensile stresses and a Drucker-Prager yield function controls the compressive stresses. A good agreement with experimental data for biaxial stress conditions in concrete can thus be obtained. The approach is particularly powerful for the numerical analysis of concrete structures, either plain or reinforced, which are predominantly in tension-compression biaxial stress states. Initiation of cracking in such areas frequently leads to brittle, uncontrollable failure (splitting cracks), which can often not be handled by existing approaches. The proposed Euler backward algorithm based on the composite yield function and enhanced by a consistent linearization of the integrated stress-strain relation for use within a Newton-Raphson method at the structural level, is extremely robust for this particular class of problems. [References: 35]
机译：使用复合屈服函数描述单调加载条件下普通混凝土和钢筋混凝土在双轴应力下的行为。朗肯屈服准则用于监视平面内拉应力，而Drucker-Prager屈服函数控制压应力。因此可以得到与混凝土中双轴应力条件的实验数据的良好一致性。该方法对于主要处于拉伸压缩双轴应力状态的普通或钢筋混凝土结构的数值分析特别有效。在这些区域开裂通常会导致脆性的，无法控制的失效（裂开），这通常无法通过现有方法来解决。拟议的基于复合屈服函数的Euler后向算法，并通过在结构级别上在Newton-Raphson方法中使用的集成应力-应变关系的一致线性化加以增强，对于此类特殊问题非常鲁棒。 [参考：35]

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