A Study on the Transient Hygrothermal Stresses in an Orthotropic Hollow Cylinder

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Journal of the Korea Institute of Military Science and Technology 1999;2(1):110-120.

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직교이방성 속빈 원통에서 과도적 흡습열 응력에 관한 연구

조환기, 신근용

¹공군사관학교
²군사과학대학원

Abstract

Transient hygrothermal stresses in an infinitely long hollow cylinder subjected to heating in hygroscopic environments at the surfaces are studied. The equations of hygrothermoelasticity based on the plane strain assumption are formulated by considering the coupling effects between heat and moisture. A closed form solution for the transient hygrothermal stresses is obtained by using decoupling techniques and the method of separation of variables. Numerical results including distributions of temperature and moisture concentration are presented. Effects of transient hygrothermal characteristics are clearly shown in both displacements and stress distributions in the wall of hollow cylinder.