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由于工艺性、维护性等要求,复合材料结构梁腹板中不可避免需开孔,不同形式的开孔有着不同承载能力。通过对梁腹板结构不同形式的开孔进行剪切载荷下屈曲试验研究,得到屈曲载荷和破坏载荷,对比不同开孔对结构承载的影响,并通过有限元进行数值模拟分析,屈曲载荷和试验基本吻合。同时试验得到复合材料结构有较强的后屈曲承载能力。
Due to the requirements of workability and maintainability, it is inevitable to make holes in the web of the composite structural beam, and different forms of openings have different carrying capacities. The buckling load and failure load were obtained by different forms of openings on the beam web structure under buckling load. The influence of different openings on the bearing capacity was compared. The numerical simulation and analysis of buckling load and test Basically consistent. At the same time, the composite structure after the test has a strong post-buckling bearing capacity.