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Indexed by:会议论文

Date of Publication:2019-01-01

Included Journals:CPCI-S、EI

Volume:504

Issue:1

Key Words:Deformation; Fiber reinforced plastics; Laminating; Mechanical properties; Stiffness; Structural design, Buckling behaviors; Composites laminates; Curvilinear fibers; Deformation theory; Fiber reinforced composites; Load-bearing capacity; Stiffened composite panel; Uni-axial compression, Laminated composites

Abstract:Based on the deformation theory of Kirchhoff composites laminated shell and the variable-stiffness theory, the post-buckling method of composites laminates with variable stiffness is given. From the idea that the fiber orientation varies linearly from one element to another along one of the coordinates, a finite element model of fiber reinforced composites laminates with variable angle is developed. Considering the progressive damage, the buckling behavior including deformation and load bearing capacity of I-shaped stiffened curvilinear fiber under the uniaxial compression is investigated. The present method in this paper can be used as a reference for the design of variable angle laminated plates with automatic wire laying technology, as well as to improve the overall mechanical properties of the structure and reduce the weight of the structure.