While with a composite patch, there exists coupling effect between the normal stress parallel to crack and the SIF, and the coupling effect is significantly dependent on ply orientation of the patch.
而裂纹板经复合材料补片胶接修补后，平行于裂纹方向的拉压应力对裂纹尖端的应力强度因子具有耦合效应，并且这种耦合效应的大小与补片的铺层含量有很大的关系。
While with a composite patch, there exists coupling effect between the normal stress parallel to crack and the SIF, and the coupling effect is significantly dependent on ply orientation of the patch.
而裂纹板经复合材料补片胶接修补后，平行于裂纹方向的拉压应力对裂纹尖端的应力强度因子具有耦合效应，并且这种耦合效应的大小与补片的铺层含量有很大的关系。
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