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Multi-Body Peridynamics for Failure Prediction in Rotating Thick Composites

机译:用于旋转厚复合材料的故障预测多体闭膜动力

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This study presents the integration of the nonlocal peridynamic theory with the well-established rigid multibody dynamics algorithms to predict material and structural failure modes simultaneously in flexible multibody dynamic systems. Although the existing structural dynamics analysis methods provide accurate dynamic simulation and deformation predictions, they lack the capability to predict material and structural failure initiation and failure modes simultaneously necessary to ensure durability and reliability. This analysis accounts for large elastic deformations coupled with dynamic motion loads without the need of post-processing for failure prediction. The accuracy of this approach is verified against the solutions already available in the literature. It specifically demonstrates damage initiation and growth in rotating composite blades.
机译:本研究介绍了非局部白动力学理论与完善的刚性多体动力学算法的整合,以在柔性多体动态系统中同时预测材料和结构故障模式。尽管现有的结构动力学分析方法提供准确的动态模拟和变形预测,但它们缺乏预测材料和结构故障启动和同时必须进行耐用性和可靠性的故障模式的能力。该分析考虑了与动态运动负载耦合的大的弹性变形,而无需后处理故障预测。这种方法的准确性验证了文献中已有的解决方案。它专门展示旋转复合刀片中的损伤启动和生长。

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