thermo-elastic non-linear analysis of multilayered plates and shells文档.pdf

Composite Structures 130 (2015) 37–43 Contents lists available at ScienceDirect Composite Structures journal homepage: www.elsevi /locate/compstruct Thermo-elastic non-linear analysis of multilayered plates and shells A. Sabik ⇑, I. Kreja * ´ ´ Department of Structural Mechanics, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland a r t i c l e i n f o a b s t r a c t Article history: Geometrically nonlinear FEM analysis of multilayered composite plates and shells is performed in order Available online 27 April 2015 to resolve the stability problem of the structures being under the influence of temperature field. The Riks–Wempner–Ramm algorithm with a specially modified multi-choice unloading condition has been Keywords: implemented in authors’ numerical code. As the representation of multilayered medium the A. Layered structures Equivalent Single Layer approach with the First Order Shear Deformation kinematics is employed. The B. Buckling effectiveness of the proposed model is examined in numerical examples with reference solutions avail- B. Thermomechanical able in the literature. Presented study proves that the proposed approach can be very effective in the C. Computational modeling analysis of stability of thin-walled thermally loaded pan