Buckling and postbuckling of isogrid-stiffened fiber-composite laminate shells: Analyses and experiments

Book · Sat Dec 31 04:00:00 EST 1994

OSTI ID:89901

Wang, S S; Srinivasan, S ^[1]; Su, K B; Dunham, M G ^[2]

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1. Univ. of Houston, TX (United States). Dept. of Mechanical Engineering
2. Du Pont Company, Wilmington, DE (United States)

Recent advances in fiber-composites manufacturing and structural efficiency requirements have led to the consideration of large isogrid-stiffened fiber-composite laminate shells for various aeronautical and space structural applications. Very little information, if any, on buckling and postbuckling of these grid-stiffened shells is currently available in the literature. In this paper, a combined analytical and experimental study is reported on the buckling and postbuckling behavior of these filament-wound fiber-composite laminate shells constructed with continuous-filament isogrid stiffeners made of the same composite material system. Solutions from linear bifurcation and geometric nonlinear postbuckling analyses have been obtained for stiffened composite shells, monocoque shells and isogrid stiffeners. Experiments have been conducted in parallel to the analyses, and buckling loads and postbuckling deformation characteristics have been studied for these structures.

• OSTI ID: 89901
• Report Number(s): CONF-9409291--; ISBN 1-56676-220-0
• Country of Publication: United States
• Language: English

Related Subjects

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