Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

Sign In to gain access to subscriptions and/or personal tools.
Journal of Composite Materials
This Article
Right arrow Full Text (OnlineFirst PDF)
Right arrow All Versions of this Article:
0021998308094967v1
42/21/2259    most recent
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via Google Scholar
Right arrow Citing Articles via Scopus
Google Scholar
Right arrow Articles by Kim, S.-H.
Right arrow Articles by Kim, C.-G.
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Article

Optimal Design of Composite Stiffened Panel with Cohesive Elements using Micro-Genetic Algorithm

Soo-Hyun Kim and Chun-Gon Kim*

Department of Aerospace Engineering, School of Mechanical Aerospace and System Engineering, KAIST 373-1 Guseong-dong Yuseong-gu, Daejeon, 305-701, Republic of Korea

* To whom correspondence should be addressed.


  Abstract

A postbuckling analysis for composite stiffened structures is a representative nonlinear analysis, but is difficult to obtain analysis results and a lengthy computational time is required. In this study, an accurate and realistic postbuckling model for a stiffened composite panel is made, and optimization module is studied. In order to predict the realistic behavior in the postbuckling region, cohesive elements were introduced to the analysis model to account for skin-stiffener debonding. The global behaviors and failure loads of the analysis results were found to be similar to the experimental results. Based on this analysis model, the optimal layer design of a composite stiffened panel up to postbuckling failure was performed using micro genetic algorithm. The optimized result showed a higher maximum failure load in the postbuckling region.

Key Words: postbuckling, composite stiffened structure, cohesive element, optimization, micro GA.

First published on August 7, 2008, doi:10.1177/0021998308094967

Journal of Composite Materials 2008;42:2259.

A more recent version of this article appeared on November 1, 2008

Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?