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Model for interlaminar normal stress in singly curved laminates

机译:单弯曲层合板的层间法向应力模型

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摘要

The paper presents a new model for interlaminar normal stress distribution in moderately thick and singly curved laminates. It requires in-plane strain information which must also map the kinematical effects caused by the curved laminate shape. The number of free parameters of the exact solutions for each layer is reduced and determined by a finite-element procedure which is also explained. The results of the mechanical model are compared with FEM results for unidirectional and cross-ply laminates. The new model can be developed for element-level post processing in a FEM program with simple finite structural elements.
机译:本文提出了一种新的模型,用于中等厚度和单弯曲层合板的层间法向应力分布。它需要平面应变信息,该信息还必须映射由弯曲的层压板形状引起的运动学影响。每一层的精确解的自由参数的数量减少并通过有限元程序确定,该程序也将进行说明。将机械模型的结果与单向和交叉层压板的FEM结果进行比较。可以使用简单的有限结构元素在FEM程序中开发新模型用于元素级后处理。

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