functionally graded material

A meshfree TSDT-based approach for modeling a skew plate

Taking into account new frontiers in materials technology to improve construction materials, we investigate the bending analysis of a Functionally Graded Material (FGM) skew plate using a meshless approach based on Third-order Shear Deformation Theory (TSDT).  We assume that the material distribution is functionally graded across the thickness of the skew plate.  The proposed approach uses both mixture rule theory and the meshless method.  The mixture rule theory is used to estimate the effective material properties of the skew plate.

The stress singularity order in a composite wedge of functionally graded materials under antiplane deformation

In this paper, finding the order of singularity in multi-wedge systems containing elements made of functionally gradient material (FGM) with an angular gradient under antiplane deformation is studied.  These elements are proposed to be modeled by means of multi-wedge composite, where the shear modulus changes from wedge to wedge according to a certain functional dependence (in this article we consider the linear, quadratic, and exponential dependencies).  It is found that the model region composed of 20 elements provides a relative error in the calculation of the stress field singularity or