金属构件裂纹的修补参数研究

The study of repair metal structure with cracks

金属结构的裂纹可以用加补强板的方法修补 ,但有限元程序计算表明 :选择补强板的参数应按照最大限度降低裂纹尖端应力的原则。

A structure with cracks can be repaired by attaching a plate. FEM indicts the dimension of the plate must be choused to minimize the stress of the crack tip. The example shows that crack repairing can only decrease the propagating rate of cracks but cannot eliminate the affection of cracks