扩展有限元法是近年来出现的一种在常规有限元框架内求解不连续问题的数值方法。
The extended finite element method (XFEM) is a numerical method for modeling discontinuities within a standard finite element framework.
基于扩展有限元法的粘聚裂纹模型为准脆性材料的开裂过程模拟提供了一种有效途径。
The present cohesive crack model based on the XFEM provides a useful way to simulate cracking in quasi-brittle materials.
应用BP -神经网络法对数学模型进行修正，建立有限元数值模拟方法补充剔除数据并对数学模型适用范围进行扩展。
The mathematical models are amended by BP neural network algorithm, and method of finite element numerical simulation is used to compensate the removal data and extend the applied range.
将该解析元与有限元相结合，构成半解析的有限元法，可求解任意几何形状和载荷的平面裂纹应力强度因子及扩展问题。
The new analytical element can be implemented into FEM program systems to solve for stress intensity factor and deal with crack propagation problems for plane cracks with arbitrary shapes and loads.
以神经网络为基本工具，利用其强大的非线性映射能力，并结合有限元法动力分析成果，为预测在复合射孔条件下岩层裂缝扩展深度提供了一条新的途径。
By using ANN and its powerful nonlinear mapping ability and combining production of FEM dynamic analysis, a new way to predicting terrane crack depth of complex fire hole is offered.
将该解析元与有限元相结合，构成半解析的有限元法，可求解任意几何形状和载荷的基于线性内聚力模型的平面裂纹扩展问题。
The new analytical element can be implemented into FEM program systems to solve crack propagation for plane problems with arbitrary shapes and loads.
破坏单元网格消去法解决有限元模拟裂纹扩展的难题，给出的模型和方法可付诸于实践。
The failure elements deleting method solves the difficult problem of FEM to simulate propagation. The model and method may be valid in practical projects.
破坏单元网格消去法解决有限元模拟裂纹扩展的难题，给出的模型和方法可付诸于实践。
The failure elements deleting method solves the difficult problem of FEM to simulate propagation. The model and method may be valid in practical projects.
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