Global-Local Methods for Thermoelastic Stress Analysis of Thick Fiber-Wound Cylinders

Abstract

Efficient global-local methods are developed for stress analysis in thick laminated cylinders consisting of a repeating sublaminate. The effective moduli and thermal expansion coefficients are obtained from the typical sublaminate and used to obtain global solutions. A refining procedure is introduced in which the global solution is used as boundary conditions for the sublaminate which is then solved by using the exact thermoelasticity formulation. Solutions obtained using these global-local methods are compared with the exact solutions for a number of composite cylinders.

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