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首页> 外文期刊>Journal of aerospace engineering >Interlaminar Stress Analysis of Orthotropic Laminated Doubly-Curved Shells on Rectangular Planform under Concentrated Force
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Interlaminar Stress Analysis of Orthotropic Laminated Doubly-Curved Shells on Rectangular Planform under Concentrated Force

机译：浓缩力下矩形平面型正交层压双弯曲壳体的Interlaminar应力分析

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摘要

This paper aims to investigate the interlaminar stresses of laminated composite doubly-curved shells on a rectangular planform subjected to concentrated force using various equivalent single layer shell theories recovered via generalized mathematical formulation. A generalized higher-order shell theory presented herein uses various polynomial and nonpolynomial type shear strain functions available in the literature to account for the effect of transverse shear deformation. Closed-formed analytical solutions are obtained using the Navier's solution technique. Interlaminar stresses are recovered based on the direct integration of three-dimensional equilibrium equations of the theory of elasticity to capture the effect of stress concentration due to concentrated forces. The numerical results for transverse deflection are compared with previously published results wherever possible. Through-the-thickness distributions of in-plane normal and transverse shear stresses are presented to clearly understand the stress concentration effects due to concentrated force.
机译：本文旨在研究采用各种等效单层壳理论对浓缩力进行浓缩力的矩形平面的层压复合双弯曲壳体的层间应力。本文呈现的广义高阶壳理论使用文献中提供的各种多项式和非聚合物型剪切应变功能，以解释横向剪切变形的影响。使用Navier的解决方案技术获得闭合的分析解决方案。基于弹性理论的三维平衡方程的直接集成来恢复层间应力，以捕获由于浓缩力引起的应力集中的效果。将横向偏转的数值结果与先前公布的结果进行了比较。提出了面内正常和横向剪切应力的厚度分布，以清楚地理解由于浓缩力引起的应力集中效应。

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