This article presents a numerical formulation based on the Boundary Element Method for the transient dynamic analysis of cracked thick symmetrical composite shells. The integral formulation uses the static fundamental solutions for thick orthotropic symmetric plates and the anisotropic plain elasticity fundamental solution. Domain integrals associated to distributed loads, curvature and inertial terms are evaluated employing the Radial Integration Method. The crack was modeled using the sub-region method. The developed formulation is implemented computationally and validated through the analysis of several proposed examples. The obtained results demonstrate the validity and robustness of the developed formulation.

中文翻译：

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裂纹厚复合材料壳的边界元法动力学分析


本文提出了一种基于边界元法的数值公式，用于裂纹厚对称复合材料壳的瞬态动力分析。积分公式使用正交各向异性对称厚板的静态基本解和各向异性平面弹性基本解。与分布载荷、曲率和惯性项相关的域积分采用径向积分法进行评估。使用子区域方法对裂纹进行建模。所开发的公式通过计算实现并通过对几个建议示例的分析进行验证。获得的结果证明了所开发配方的有效性和稳健性。