本文采用三维有限元模型分析了荷载作用下自上而下裂缝尖端的应力强度因子，并与二维平面应变模型分析的结果进行比较。
In this thesis, the stress intensity factors of top-down cracks caused by loading are calculated using three dimensional finite element model and compared to the results of plane strain model.
分别基于平面应力型全弹性模型和三维数值模型建立了计算复合材料飞轮破坏转速的二维和三维算法。
Based on the plane stress full-elastic model and 3d numerical model, 2d and 3d methods of calculating the failure rotating speed of the composite flywheel were established.
分别基于平面应力型全弹性模型和三维数值模型建立了计算复合材料飞轮破坏转速的二维和三维算法。
The mechanical model of composite energy storage flywheel is built based on the orthotropic elastic solid basic theory and the finite element theory.
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