Steady thermal stresses in a plate of functionally gradient material.

Abstract

A functionally gradient material which decreases thermal stresses has been developed for structural components and/or mechanical elements in fields such as nuclear, aircraft and space engineering. Steady state thermal stresses in a plate made of the functionally gradient material are discussed. The main theme of this subject is how to distribute the component of the material in the functionally gradient material to decrease thermal stress. We discussed the general method to decrease thermal stress in laminated plates made of two and three layers. The plate of an optimally functionally gradient material was determined to decrease the steady thermal stresses.