| 混凝土在双向应力作用下新的破坏准则和弹塑性本构关系 |
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| 引用本文： | 郑建军,徐世烺,周欣竹. 混凝土在双向应力作用下新的破坏准则和弹塑性本构关系[J]. 浙江工业大学学报, 2003, 31(2): 119-123,152 |
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| 作者姓名： | 郑建军 徐世烺 周欣竹 |
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| 作者单位： | 1. 浙江工业大学,建筑工程学院,浙江,杭州,310032
2. 大连理工大学,土木建筑工程学院,辽宁,大连,116024 |
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| 基金项目： | 国家杰出青年基金 (5 96 2 5 814 )，大连理工大学国家重点实验室基金联合资助项目 |
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| 摘 要： | 讨论了混凝土在双向应力作用下的破坏准则和弹塑性本构关系。根据混凝土的破坏特性，提出一个包含二个物理参数的破坏准则。在此基础上，通过构造塑性位势导出了混凝土在双向应力作用下弹塑性本构关系。最后，该破坏准则和本构关系与混凝土实验进行了比较，从而证实了它们的有效性。
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| 关 键 词： | 混凝土结构 破坏准则 弹塑性本构关系 双向应力 |
| 文章编号： | 1006-4303(2003)02-0119-05 |
A new failure criterion and elastic-plastic constitutive relation for concrete under biaxial stresses |
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| ZHENG Jian|jun+,XU Shi|lang+,ZHOU Xin|zhu+. A new failure criterion and elastic-plastic constitutive relation for concrete under biaxial stresses[J]. Journal of Zhejiang University of Technology, 2003, 31(2): 119-123,152 |
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| Authors: | ZHENG Jian|jun+ XU Shi|lang+ ZHOU Xin|zhu+ |
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| Affiliation: | ZHENG Jian|jun+1,XU Shi|lang+2,ZHOU Xin|zhu+1 |
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| Abstract: | A new failure criterion and elastic|plastic constitutive relation for concrete under biaxial stresses is discussed in this paper. According to the failure characteristics of concrete, a failure criterion involving two physical parameters is presented. Based on the failure criterion, an elastic|plastic constitutive relation for concrete under biaxial stresses is derived by constituting a plastic potential. Finally, the failure criterion and the constitutive relation are compared with concrete experiments and their effectiveness is then verified. |
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| Keywords: | concrete failure criterion elastic|plastic constitutive relation biaxial stress |
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