Abstract

The present study develops computationally efficient meshless model for the first-ply failure analysis and predicts the weakest ply, based on various failure criteria via one-dimensional, higher-order beam theory. The effective property of lamina is obtained with the help of micromechanics based Eshelby’s-Mori-Tanaka model. The governing equation is obtained with the help of point interpolation method based on polynomial basis function. The effects of different essential and natural boundary conditions, aspect ratio, lamination angle and volume fraction on the first-ply failure load of composite beam is studied.

中文翻译：

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层合组合梁失效分析点插值无网格法的实现

摘要

本研究为第一层失效分析开发了计算效率高的无网格模型，并基于各种失效标准通过一维高阶梁理论预测最薄弱的层。借助基于微力学的 Eshelby's-Mori-Tanaka 模型获得了薄层的有效特性。利用基于多项式基函数的点插值法得到控制方程。研究了不同的基本和自然边界条件、纵横比、层压角和体积分数对组合梁首层破坏载荷的影响。