基于ANSYS的受拉平板裂纹尖端三维应力状态有限元分析

Analysis on Three-Dimensional Stress Situation Based ANSYS for Plate Crack Tip on Load

钢结构的裂纹尖端的状态对结构的断裂影响很大,是钢材断裂分析和设计中研究的重点。由于一般构件的几何形状和荷载状态复杂,难于对裂纹尖端的应力和应变状态得到理论的结果,因此有限元的计算方法非常重要。介绍ANSYS软件在钢结构断裂分析的运用。使用ANSYS有限元软件对各种断裂模型进行计算,获得了各种因素对钢结构断裂的影响规律。

Stress status at the tip of crack is closely related with fracture of the structure,it is the key part of fracture analysis and design.Because the geometrical shapeand and loading conditions are too complex to cant get a full theorical solution,the FEA methodis very important.The paper introduces the application of ANSYS software in thefracture analysis of steel structures.Many fracture models are created and calculated by ANSYS.The influences of relative factors are acquired from the calculations.