复合材料修补含菱形开孔钢板的有限元分析

Finite element analysis of the composite steel plate with a diamond hole

利用ANSYS有限元分析软件对复合材料修复含菱形孔钢板的强度、刚度进行了数值分析,分析了补片的宽度及钢板厚度对修复效果的影响。引用相对刚度、相对强度、屈服载荷提高率等概念来表征复合材料修复损伤钢板的效果。结果表明:全宽度修补比部分宽度修补效果好;同一厚度补片对其自身厚度20倍以下的损伤钢板修补效果较理想。

The strength and stiffness of the steel plate with a diamond hole repaired by a bonded composite patch were analyzed by FEM in ANSYS.And the influence of the patch width and thickness of the steel plate upon the effect of repairing was studied.The concepts of relative stiffness,relative strength and rising ratio of the yielding load were introduced to research the effect of composite repairing.Numerical results showed that the effect of full-width repairing was more efficient than the part-width repairing;and the effect of repairing with the same width patch was best when the width of steel plate was less than 20 times than that of patch.