Postbuckling Behavior of Composite Laminated Plates with Initial Imperfections under Biaxial Compression

Buckling and Postbuckling Behavior of Laminated Composite Plates With a Cutout

Initial Postbuckling Behavior of Shear Deformable Symmetrically Laminated Beams

Abstract-Results for the initial postbuckling behavior of laminated beams are presented. Shear deformation effects are incorporated by relaxing certain assumptions of thin beam/plate theory. The analysis used is in the spirit of Koiter [Doctoral thesis, Delft, Amsterdam, English translation AFFDL-TR-70-25, (1970)], who developed asymptotic expressions for the potential energy in the neighborhoo...

Local Buckling of Steel Plates in Double Skin Composite Panels under Biaxial Compression and Shear

Steel plates in double skin composite (DSC) panels are restrained by a concrete core and welded stud shear connectors at discrete positions. Local buckling of steel plates in DSC panels may occur in a unilateral mode between stud shear connectors when subjected to combined states of stresses. This paper studies the local and post-local buckling strength of steel plates in DSC panels under biaxi...

Failure of Fibrous Composite Plates under Static Biaxial Planar Loading

This paper outlines an experimental investigation carried out for the analysis of failure mechanisms in fibrous laminated composite plates containing stress raisers, in the form of cutouts, under static biaxial planar compressive loadiing. A specially designed biaxial loadiing frame was used to test a series of 48 ply graphite/epoxy composite laminated plates with centrally located circular hol...

Linear Static Behavior of Damaged Laminated Composite Plates and Shells

A mathematical scheme is proposed here to model a damaged mechanical configuration for laminated and sandwich structures. In particular, two kinds of functions defined in the reference domain of plates and shells are introduced to weaken their mechanical properties in terms of engineering constants: a two-dimensional Gaussian function and an ellipse shaped function. By varying the geometric par...