Identification of Qusi-Static Displacement for Constitutive Models of Viscoelasticity
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摘要: 对一类边界条件,建立粘弹性准静力位移与本构参数的显式关系,给出优化识别的叠代格式,从二阶微分模型出发,识别粘弹性本构模式,讨论了信息误差对反演结果的影响.Abstract: An explicit relation between constitutive parameters and qusi-static displacement of viscoelasticity is derived under a kind of boundary condition,and an iterative form of optimized identification is presented.Viscoelastic constitutive models are identified from a two order differential model,and effects of information errors on results of inverse analysis are discussed.
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Key words:
- viscoelasticit y /
- constitutive model /
- static displacement /
- inverse analysis
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[1] 薛琳、杨志法等,确定流变岩体的参数及地应力的位移反分析,地质科学,(4)(1986). [2] 刘新宇,任意洞形的围岩流变参数反分析,第二届全国计算力学会议论文(1986). [3] 杨林德、朱合华,地层三锥粘弹性反演分析,岩土工程学报,13(6)(1991),18-26. [4] Yang Haitian and Wu Ruifeng,I nverse analysis of static displacement for determinatin of viscoelastic parameters,Applied Mathematical Modelling.(已接受).
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