Accurate numerical modeling for functionally graded (FG) cylinders of finite length subjected to thermo mechanical load (original) (raw)

The demand for improved structural efficiency in space structures and nuclear reactors has resulted in the development of a new class of materials, called functionally graded materials (fgMs). fgMs have become one of the major research topics in the mechanics of materials community during the past fifteen years. The concept of FGMs was proposed in 1984 by materials’ scientists in the Sendai (Japan) area as a means of preparing thermal barrier materials1. continuous changes in the composition, microstructure, porosity, etc. of these materials result in gradients in properties such as mechanical strength and thermal conductivity. thus, fgMs are heterogeneous materials, characterized by spatially variable microstructures, and thus spatially variable macroscopic properties are introduced to enhance material or structural performance. Particularly, material properties can be A simplified and accurate analytical cum numerical model is presented here to investigate the behavior of FG cylin...