| 混凝土应力三轴比依赖的塑性损伤模型 |
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| 引用本文： | 沈新普,沈国晓,周琳.混凝土应力三轴比依赖的塑性损伤模型[J].工程力学,2006,23(7):155-159. |
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| 作者姓名： | 沈新普 沈国晓 周琳 |
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| 作者单位： | 沈阳工业大学建筑工程学院651信箱,辽宁,沈阳,110023 |
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| 基金项目： | 中国科学院资助项目;辽宁省教育厅资助项目 |
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| 摘 要： | 提出了一种新的损伤塑性本构模型,定义了一个用应力不变量表示的应力三轴比,强调了应力三轴比对塑性屈服的影响。采用本研究设计的专门用于本构校验的计算机软件,对上述模型的应力应变加载曲线进行了数值模拟,数值结果与实验结果吻合得比较好。
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| 关 键 词： | 损伤 塑性 本构模型 应力三轴比 混凝土 |
| 文章编号： | 1000-4750（2006）07-0155-05 |
| 收稿时间： | 2004-11-06 |
| 修稿时间： | 2004-11-062005-05-28 |
A STRESS-TRIAXIALITY-DEPENDENT PLASTIC DAMAGE MODEL FOR CONCRETE |
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| SHEN Xin-pu,SHEN Guo-xiao,ZHOU Lin.A STRESS-TRIAXIALITY-DEPENDENT PLASTIC DAMAGE MODEL FOR CONCRETE[J].Engineering Mechanics,2006,23(7):155-159. |
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| Authors: | SHEN Xin-pu SHEN Guo-xiao ZHOU Lin |
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| Affiliation: | College of Architectural Engineering, Shenyang University of Technology, Shenyang, Liaoning 110023, China |
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| Abstract: | A plastic damage constitutive model was proposed with special concerns on simulating the stress-triaxiality-dependent hardening phenomena. The stress triaxiality was defined in terms of stress invariants. A subroutine was developed for validation of the constitutive model at local level. Comparison between the numerical results and experimental data indicates the validity of the proposed model and the related numerical scheme. |
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| Keywords: | damage plasticity constitutive model stress triaxiality concrete |
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