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提出了层合板六参量的高阶剪切变形理论的位移场假定 ,以考虑在大变形条件下层合板法向变形和厚度的变化 .同时对vonKarman应变位移简化假设进行了补充修改 ,考虑某些有限变形条件下被忽略小量的影响 ,建立了对应于该文六参量模型和更加适合大变形分析的层合板几何非线性关系 ,平衡方程和边界条件 .利用该文模型分析了橡胶复合材料简支板的大变形弯曲行为 ,并对比Reddy五参量几何非线性简单高阶剪切变形层合理论解和弹性解析解 ,证明该文模型更适合大变形和层合厚板分析 .
The displacement field assumption of the high-order shear deformation theory of six-parameter laminate was proposed to consider the normal deformation and thickness change of the laminate under the condition of large deformation. At the same time, the simplification assumption of von Karman strain displacement was modified and some finite The geometric nonlinearity, equilibrium equation and boundary conditions of the laminated plate corresponding to the six-parameter model and the more suitable large deformation analysis are established by neglecting the small amount of deformation under the condition of the deformation.The paper uses the model to analyze the simple structure of the rubber composite The results show that the proposed model is more suitable for the analysis of large deformation and laminated thick slab than the Reddy five-parameter geometric nonlinear simple high-order shear deformation laminar theoretical solution and elastic analytical solution.