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脆塑性结构极限载荷的计算与工程应用【作者】刘文政 【导师】徐秉业

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【作者】刘文政导师徐秉业水利论文,pAJ5^*?
【作者基本信息】清华大学,固体力学,1989年,博士

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【英文摘要】 In the work,a damage surface(which is the external surface of the strain-softening domain)perturbation formulation of lood carrying capacity problems ofbrittle-plastic structures is presented and analytical solutions of several typicalboundary value problems are constructed to show the efficiency of the new for-mulation.Working principal and controlling method of MTS815.03 and/or Mayes electro-hydraulic serve cantrol festing system are briefly described.Propcrties of the wholeprocess of load-displacement curves of the concerned rock and coal mass arediscussed.It's shown from the obtained experimental results that the So-Galled brittle-plasticity model is suitable for describing the constitutive behaviour of such materialsas rock and coal.Matrix representation and integration of brittle-plastic constitutiverelation in 6-dimensional stress space are derived based on the laws expressedin strain-space plesticity formalation. The invalved initial and subsequent yield surfacesare of the type...更多
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TAG: 导师 刘文政 塑性 徐秉业 极限载荷
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