Analytical Thermal Stress Analysis of Perforated Symmetric Composite Laminates Containing a Quasi-Triangular Hole

作     者：Bayati Chaleshtari, M. H. Khoramishad, H. Berto, F. 

作者机构：Iran Univ Sci & Technol Sch Mech Engn Tehran 16846 Iran Norwegian Univ Sci & Technol Dept Mech & Ind Engn N-7491 Trondheim Norway 

出 版 物：《PHYSICAL MESOMECHANICS》 (物理细观力学)

年 卷 期：2020年第23卷第6期

页      面：514-530页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Complex variable method Quasi-triangular hole Symmetric laminated composite Thermal stress Stacking sequence 

摘      要：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 degrees/-45 degrees](s) and [0 degrees/90 degrees](s). The analytical solution in this study was well validated against the finite element results.