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首页> 外文期刊>Journal of Sandwich Structures and Materials >Behaviour of sandwich laminates subjected to thermal loading using higher-order zig-zag theory
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Behaviour of sandwich laminates subjected to thermal loading using higher-order zig-zag theory

机译：使用高阶之字形理论对夹心层板进行热负荷的行为

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摘要

In the present work, a higher-order zig-zag laminate theory is utilized to investigate the behaviour of sandwich laminates having low-density core materials subjected to thermal loading. The theory satisfies continuity condition of transverse shear stress at the layer interfaces and zero transverse shear stress at the top and bottom surfaces of the laminated plate. The assumed in-plane displacements are having cubic variations through the entire thickness of the plate. On the other hand, the variation of the transverse displacement is taken to be quadratic within the core and constant through the facesheets. In order to reduce the computation effort, an efficient C-0 finite element formulation for the above sandwich plate model is adopted. Some examples of laminated composite and sandwich plate with different material properties, core thickness ratios, aspect ratios, boundary conditions, number of layers and ply orientations are considered for the analysis. The efficacy of the present model in predicting various responses is verified by comparing with three-dimensional elasticity solutions along with the available published results.
机译：在目前的工作中，采用了高阶之字形层压板理论来研究具有低密度芯材的夹心层压板的性能。该理论满足层板界面处的横向剪应力和层压板的顶面和底面的零横向剪应力的连续性条件。假定的平面内位移在整个板的厚度上都具有立方变化。另一方面，横向位移的变化被认为在芯内是二次的，并且在面板上是恒定的。为了减少计算量，针对上述夹层板模型采用了有效的C-0有限元公式。分析中考虑了具有不同材料特性，芯部厚度比，纵横比，边界条件，层数和层定向的层压复合材料和夹心板的一些示例。通过与三维弹性解以及可用的公开结果进行比较，验证了本模型在预测各种响应中的功效。

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