The approximate engineering approaches for stress intensity factor (SIF) of skin with multiple site cracks and skin and stringer with cracks are given.
给出蒙皮带有多裂纹和蒙皮带有多裂纹且桁条也带有裂纹时应力强度因子的近似工程估算方法。
For co-curing specimens, failures happen at the interface of the skin and stiffener, and the core regions of the stringer also fail.
共固化试验件损伤主要发生在筋条蒙皮连接界面，且填充区也发生破坏；
For co-curing specimens, failures happen at the interface of the skin and stiffener, and the core regions of the stringer also fail.
共固化试验件损伤主要发生在筋条蒙皮连接界面，且填充区也发生破坏；
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