✦ LIBER ✦

HIGH-ORDER ELEMENT FOR PREBUCKLING AND BUCKLING ANALYSIS OF LAMINATED PLANE FRAMES

✍ Scribed by I. SHEINMAN; M. EISENBERGER; Y. BERNSTEIN

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 559 KB
Volume: 39
Category: Article
ISSN: 0029-5981
DOI: 10.1002/(sici)1097-0207(19960715)39:13<2155::aid-nme948>3.0.co;2-h

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✦ Synopsis

A new high-order element for prebuckling and buckling of any laminated plane frame is developed. The kinematic approach involves a variety of high-order models with different powers of the thickness coordinate, and the derived stiffness matrix is based on a special power series, without a numerical process. It yields an exact formulation for high-order (first) models and improved formulations for higher-order (second and third) ones. A parametric study of the 'locking' phenomenon and the shear deformation effects was camed out for isotropic and laminated structures. It was found that the first-order model with an appropriate shear correction factor yielded results close to its higher-order counterparts.

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