利用非线性应变预测横向加载下层状复合薄斜板的渐进破坏

D. Chatterjee, Arghya Ghosh, Dipankar Chakravorty
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引用次数: 0

摘要

有关工业上重要的复合斜板(用作覆盖非矩形平行四边形平面区域的屋顶和地板单元)的文献综述显示,渐进破坏方面尚未得到研究人员的关注,而这对于全面了解从开始到最终阶段的破坏行为至关重要。在本方法中,受损板材的刚度衰减仅在首次和渐进失效的所有阶段的相应薄板的受损点处进行考虑,其输出结果与已公布的实验结果非常吻合。这种逼真的破坏行为建模是本文的新颖之处。除了报告失效载荷值外,本文还介绍了倾斜板表面的失效区和损伤进展性质,预计这将为无损健康监测提供有价值的信息。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Progressive failure prediction of laminated composite thin skew plates under transverse loading using nonlinear strains
A review of literature about industrially important composite skew plates, which are used as roofing and flooring units to cover non-rectangular parallelogram shaped plan areas, shows that the aspect of progressive failure has not received any attention from researchers which is essential to comprehensively understand failure behaviour from initiation to the ultimate stage. In the present approach stiffness degradation of a damaged plate is considered only at the point of damage in the corresponding lamina at all stages of first and progressive failure and the present outputs match excellently with published experimental results. This realistic modelling of failure behaviour is the novelty of this paper. Apart from reporting the failure load values, the failure zones and nature of damage progress on the skew plate surfaces are also presented which are expected to be valuable inputs for non-destructive health monitoring.
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