Optimization of Imperfection‐Sensitive Structures
Publication: Journal of Engineering Mechanics
Volume 115, Issue 8
Abstract
The degrading effect of small shape imperfections on the buckling strength of certain nominally optimized structures is investigated. A general method for such problems is presented, which reduces the imperfection effect to an eigenvalue problem. As an example, the general method is applied to the optimization of a column on a linear elastic foundation. The random shape imperfections are simulated as a weakly stationary stochastic process, with an assumed autocorrelation function, leading to a reliability‐based optimal design. The significant effect of the shape imperfections on the optimal design is demonstrated.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 115 • Issue 8 • August 1989
Pages: 1663 - 1682
Copyright
Copyright © 1989 ASCE.
History
Published online: Aug 1, 1989
Published in print: Aug 1989
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