Abstract

In this study, the thermal stress distribution surrounding a quasi-triangular hole within a symmetric composite laminate made of various composite materials was investigated. A composite laminate exposed to uniform heat flux was analyzed using the complex variable method as a thermo-elastic two-dimensional problem under a steady state condition. The analytical solution was achieved with the development of the Lekhnitskii’s solution and using the classical laminated plate theory and a conformal mapping function. The influence of important parameters on thermal stress distribution surrounding a hole such as the hole orientation, bluntness and aspect ratio, the heat flux angle and the laminate stacking sequence and material was studied. The results were achieved for different stacking sequences of [45°/–45°]_s and [0°/90°]_s. The analytical solution in this study was well validated against the finite element results.

中文翻译：

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含准三角形孔的对称复合多孔板的分析热应力分析

摘要

在这项研究中，研究了由各种复合材料制成的对称复合层压板内准三角孔周围的热应力分布。在稳态条件下，使用复变量方法作为热弹二维问题，对暴露于均匀热通量的复合层压板进行了分析。随着Lekhnitskii解决方案的发展，并使用经典的叠层板理论和保形映射函数，获得了解析解决方案。研究了重要参数对孔周围热应力分布的影响，例如孔的方向，钝度和长宽比，热通量角以及层压板的堆叠顺序和材料。在[45°/ –45°] _s的不同堆叠顺序下获得了结果和[0°/ 90°] _s。这项研究中的解析解已针对有限元结果进行了很好的验证。