连接密网格与疏网格的过渡单元对有限元计算结果的精度有较大的影响。
In the mesh generation of the finite element computation, the transition elements connecting the dense and sparse meshes have great effect on the precision of the computational results.
同时，在计算方法上，对裂纹顶端附近较密和较疏两种单元网格的计算结果进行了比较。
Comparison between the calculated results with coarse and fine finite element meshes around crack tip is also made.
同时，在计算方法上，对裂纹顶端附近较密和较疏两种单元网格的计算结果进行了比较。
Comparison between the calculated results with coarse and fine finite element meshes around crack tip is also made.
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