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Post‐buckling analysis of imperfect laminates using finite strips based on a higher‐order plate theory
Author(s) -
Zou G. P.,
Lam S. S. E.
Publication year - 2003
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.644
Subject(s) - finite strip method , buckling , strips , composite laminates , isotropy , structural engineering , plate theory , imperfect , trigonometry , trigonometric functions , materials science , mathematics , finite element method , composite material , geometry , engineering , physics , linguistics , philosophy , quantum mechanics
A finite strip procedure has been developed for the post‐buckling analysis of composite laminates when subjected to progressive end shortening. The finite strips are developed based on a higher‐order shear deformation plate theory and there are nine variables at each nodal line. Initial imperfection expressed in the form of suitable trigonometric function is allowed. Examples including isotropic plates and laminates with arbitrary lay‐up arrangement are presented. Numerical results for laminates with and without initial imperfection are used to illustrate the effect of imperfection. Copyright © 2003 John Wiley & Sons, Ltd.