Finite element analysis of thermal stress of laminated composite plates using Taguchi method

Abstract

In present study, thermal stress behavior of laminated composite plates subjected to constanttemperature load was investigated using Taguchi method according to von Mises stress.Numerical thermal stress analyses were conducted based on L8 orthogonal array including fourcontrol factors with two levels. Fiber orientation angles of laminates for the plates were used tobe control factors. Finite element analysis of the plates was carried out using ANSYS software.Fiber angles with optimum levels and their effects on thermal stress of plates were detectedusing analysis of signal to noise (S/N) ratio. Level of importance of laminates and percentageeffect ratio of each laminate on von Mises stress were determined according to analysis ofvariance (ANOVA).