Thermal-Mechanical Response of Stiffened Composite Cylinders

[+] Author and Article Information
Carl T. Herakovich, Farshad Mirzadeh

Applied Mechanics Program, University of Virginia, Charlottesville VA 22903-2442

Appl. Mech. Rev 50(11S), S87-S92 (Nov 01, 1997) doi:10.1115/1.3101855 History: Online April 20, 2009


A two-dimensional, curvilinear, isoparametric finite element is used to provide a discrete layer analysis of deformations and stresses in stiffened composite cylinders subjected to thermal-mechanical loading. Individual layers of the cylinder and the stiffener are modeled explicitly, providing an accurate and detailed representation of deformations and stresses including interlaminar stresses. Several skin and stiffener laminates are studied for fabrication induced residual thermal effects, applied axial strain, and internal pressure loadings. The analysis shows that local curvatures and interlaminar stress concentrations are present near the skin/stiffener joint. Interlaminar stresses are also present along the free edge of the stiffener.

Copyright © 1997 by American Society of Mechanical Engineers
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