Techno Press
Techno Press

Structural Engineering and Mechanics
  Volume 47, Number 3, August10 2013 , pages 421-442
DOI: https://doi.org/10.12989/sem.2013.47.3.421
 


Asymmetric transient thermal stress of a functionally graded hollow cylinder with piecewise power law
Yoshihiro Ootao and Masayuki Ishihara

 
Abstract
    This paper is concerned with the theoretical treatment of transient thermoelastic problems involving a functionally graded hollow cylinder with piecewise power law due to asymmetrical heating from its surfaces. The thermal and thermoelastic constants of each layer are expressed as power functions of the radial coordinate, and their values continue on the interfaces. The exact solution for the two-dimensional temperature change in a transient state, and thermoelastic response of a hollow cylinder under the state of plane strain is obtained herein. Some numerical results for the temperature change and the stress distributions are shown in figures. Furthermore, the influence of the functional grading on the thermal stresses is investigated.
 
Key Words
    thermal stress problem; functionally graded material; hollow cylinder; piecewise power law; transient state; asymmetrical heating; plane strain problem
 
Address
Yoshihiro Ootao and Masayuki Ishihara : Department of Mechanical Engineering, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, 599-8531 Japan
 

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