| 邓肯-张非线性模型研究及其在ANSYS中的实现 |
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| 引用本文： | 宿辉,党承华,崔佳佳.邓肯-张非线性模型研究及其在ANSYS中的实现[J].中国农村水利水电,2010,0(3):76-79. |
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| 作者姓名： | 宿辉 党承华 崔佳佳 |
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| 作者单位： | 1. 北京科技大学土木与环境学院,北京,100083;河北工程大学水电学院,河北,邯郸,056021
2. 河北工程大学水电学院,河北,邯郸,056021 |
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| 摘 要： | 对工程领域使用广泛的邓肯-张非线性本构模型进行了研究,总结了国内外的研究现状及理论成果,针对其无法判定因结压力降低时的加载情况,提出了相应的变形模量的计算方法,同时考虑中主应力、土体抗拉强度的影响对模型进行了修正。利用APDL编写程序实现了ANSYS的材料本构模型的二次开发,运用重启动方法实现单元应力修正后数据重写入数据库,通过试验模拟对比分析验证了模型的适用性。
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| 关 键 词： | 邓肯-张模型 抗拉强度 中主应力 应力分析 |
Duncan-Chang Nonlinear Elastic Model and Realization in ANSYS |
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| SU Hui
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DANG Cheng-hua
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CUI Jia-jia.Duncan-Chang Nonlinear Elastic Model and Realization in ANSYS[J].China Rural Water and Hydropower,2010,0(3):76-79. |
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| Authors: | SU Hui DANG Cheng-hua CUI Jia-jia |
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| Institution: | SU Hui1,2,DANG Cheng-hua2,CUI Jia-jia2(1.School of Civil , Environmen Engineering,Beijing University of Science , Technology,Beijing 100083,China,2.School of Water Resources , Hydropower,Hebei University of Engineering,H,an 056021,Hebei Province,China) |
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| Abstract: | Based on the present research situation and theoretical results,research is done on Duncan-Chang nonlinear elastic model,which is applied widely in engineering,.According to the fact that Duncan-Chang model can't judge the loading situation while consolidation pressure decreases.The model is modified cosidering the effect of intermediate principal stress and tensile strength of soil.The secondary development of material constitutive model in ANSYS is accomplished by utilizing the APDL language.Then the rest... |
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| Keywords: | Duncan-Chang nonlinear elastic model tensile strength intermediate principal stress stress analysis |
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