Thermal stress analysis of layer-wise functionally graded material beam considering neutral plane

Abstract

Stress analysis of layer-wise functionally graded materials (FGMs) beam is investigated in this work. Layer-wise theory is a distributed model instead of the continuous model for the FGMs the material properties of FGMs are not isotropic. Therefore, neutral plane of FGMs is different from the isotropic material. And the surface is determined by using the first moment with respect to temperature-dependent Young’s modulus. In the numerical results, axial and shear stress distribution are calculated by considering neutral plane according to the number of layers of FGMs.