On The Stress Free Deformation Of Linear FGM Interface Under Constant Temperature

Abstract

This paper demonstrates the stress free thermo-elastic problem of the FGM thick plate. Existence of such a purely thermal deformation is proved in two ways. First proof is based on application of the Iljushin thermo-elastic potential to displacement type system of equations. This reduces 3D problem to the plane stress state problem. Next it is shown that the unique solution fulfils conditions of simultaneous constant temperature and linear gradation of thermal expansion coefficient. Second proof is based directly on stress type system of equations which straightforwardly reduces to compatibility equations for purely thermal deformation. This occurs if only stress field is homogeneous in domain and at boundary. Finally an example of application to an engineering problem is presented.

Ratcheting Simulation in a Titanium-Steel Bimetallic Plate Based on the Chaboche Hardening Model

“…Bimetallic plates are sometimes required in specific industry equipment where different physical properties are needed in single plate. One layer of bimetallic plate offers for example excellent resistance against corroding medium and the second one provides appropriate mechanical stiffness and strength (Sulym et al, 2016;Ganczarski and Szubartowski, 2015). But, these different physical properties are often the reason that the required materials are unweldable by standard methods.…”