Stress waves and dynamic buckling of functionally graded cylindrical shells under combined axial impact and thermal load

• Published in: Acta mechanica Vol. 226; no. 5; pp. 1323 - 1339
• Main Authors: Sun, Jiabin, Xu, Xinsheng, Lim, C. W.
• Format: Journal Article
• Language: English
• Published: Vienna Springer Vienna 01.05.2015; Springer; Springer Nature B.V
• Subjects: Boundary conditions; Buckling; Classical and Continuum Physics; Control; Cylindrical shells; Dynamical Systems; Engineering; Engineering Thermodynamics; Failure; Functionally gradient materials; Heat and Mass Transfer; Load; Loads (forces); Mathematical models; Mechanics; Reflection; Solid Mechanics; Stress analysis; Stress waves; Theoretical and Applied Mechanics; Vibration; Cylindrical Shell; Critical Stress; Shell Thickness; Conical Shell; Stress Wave
• ISSN: 0001-5970; 1619-6937
• DOI: 10.1007/s00707-014-1244-8

This article is mainly focused on accurate solutions for axial impact buckling of functionally graded cylindrical shells in a heated environment. A new analytical methodology is developed, and a rigorous solving procedure is conducted to guarantee the accuracy of the obtained results. Various aspects related to boundary conditions, geometric parameters, material properties and temperature variations are investigated systematically. The numerical results reveal that in-plane boundary conditions have an obvious influence on the shell. If the reflection of stress waves occurs, critical stresses should further decrease with the interaction of incident and reflected waves. The ability of FGCSs in resisting buckling failure can be improved by controlling the material exponent.