基于复合材料各向异性板的大挠度方程,采用Ritz法和最小势能原理推导出了正交各向异性复含材料层合板在面内弯曲载荷作用下临界屈曲弯矩的解析解;给出了面内弯剪复合载荷作用下复合材料层合板屈曲的强度校核方法,并将本文方法所得结果与用有限元法(FEM)所得结果进行了比较.结果表明,本文方法与有限元方法相吻合,并且形式简洁,便于工程应用.
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