某混凝土拱坝三维非线性有限元分析

拱坝结构中混凝土处于多维受力状态，由于混凝土早期裂缝、内部缺陷、材料非线性等因素，必然导致混凝土结构的非线性反映。文中应用多轴强度准则，对某拱坝进行三维非线性有限元仿真分析，得出其应力位移规律、极限承载力，为该拱坝的设计提供了参考。

3D Nonlinear Finite Element Analysis on Concrete Arch Dam

A concrete arch dam always works under multi-dimension strength. Because of the early crack of concrete, internal defects and non-linear nature of the material itself, concrete structure of the dam always works in non-linear state, representing that the relation of stress and strain is non-linear when the dam works. In the article, 3D nonlinear finite element simulative analysis with William-Warnke strength criterion is made on a concrete arch dam to get the law of its stress and displacement and to learn about where it is weak on it, providing reference for design of the arch dam.