Design optimization of blade stiffened laminated composite plates for maximum buckling load
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Authors
Achenbach, Mark R.
Subjects
Design optimization
blade stiffened plate
buckling
blade stiffened plate
buckling
Advisors
Shin, Phillip Y.
Date of Issue
1990-12
Date
1990-12
Publisher
Monterey, California: Naval Postgraduate School
Language
Abstract
The buckling load of a blade stiffened laminated composite plate having midplane symmetry is maximized for a given total weight. The thickness of the layers and the width and height of the stiffener are taken as the design variables. Buckling analysis is carried out using a finite element method. The optimization problem is solved using commercially available optimization packages. Due to the highly nonlinear nature of the optimality equations, several local optimum solutions are found. To examine the relationship between the number of local optimums and their relative magnitudes, various combinations of fiber orientation for the laminate layers and the blade stiffener are investigated.
Type
Thesis
Description
Series/Report No
Department
Mechanical Engineering
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
xii, 85 p. ill.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.