Buckling analysis of composite laminates under end shortening by higher‐order shear deformable finite strips

Abstract

SUMMARYA higher-order shear deformable ÿnite strip is developed and employed in the buckling analysis of laminated composite plates when subjected to uniform end shortening. This enables the transverse shear deformation to be accurately incorporated. The permitted laminate material properties are quite general, encompassing anisotropy and full coupling between in-plane and out-of-plane behaviour. Results with respect to the number of plies, thickness of laminate and ratios of E 11 =E 22 are presented for unsymmetric cross-ply and angle-ply lay-ups and for laminates with arbitrary lay-up arrangements.

High accuracy postbuckling analysis of channel section struts

“…In other words, the linear summation of the deflections corresponding to d 1 f 1 to d 5 f 5 has led to the total deflection of the structure, which is designated by the symbol y: (1,2,3,4,5). It is seen that the deflected shape obtained by the F-a FSM agrees very well with those S-e FSM [14].…”

“…There are a lot of papers concerning linear buckling and vibration analysis of composite laminated plates and plate structures formed of composite materials having very general material properties [1][2][3][4][5]. They have extensively used the finite strip method based on the use of Classical Plate Theory (CPT), first-order Shear Deformation Plate Theory (SDPT) and Higher-order Shear Deformation Plate Theory (HSDPT).…”

Buckling and post-buckling behaviour of moderately thick plates using an exact finite strip

“…In the linear buckling field Graves Smith and Sridharan [2] derived the first buckling formulation for isotropic plates under edge load using FSM. Lau and Hancock [3], Wang and Dawe [4] and Zou and Lam [5] have used FSM based on the Classical Plate Theory (CPT), First-order Shear Deformation Theory (FSDT) and Higherorder Shear Deformation Theory (HSDT). Many works have been done in the field of geometrically non-linearity based on use of FSM.…”

Calculation of Initial Post-Buckling Behaviour of Moderately Thick Plates using an Exact Finite Strip

“…where K is a shear correction factor which is taken as in the current study. It is noted that the stresses and strains in Equation 3include the components corresponding to the membrane and bending contributions as outlined below (5) ; where and correspond to the membrane contribution, and and relate to the bending and twisting actions. It is noted that the membrane strain can be subdivided into its linear and non-linear component as given below…”

“…In the linear buckling field Graves Smith and Sridharan [2] derived the first buckling formulation for isotropic plates under edge load using FSM. Lau and Hancock [3], Wang and Dawe [4] and Zou and Larn [5] have used FSM based on the classical plate theory (CPT), first-order shear deformation theory (FSDT) and higher-order shear deformation theory (HSDT). Many works have been done in the field of geometrically non-linearity based on use of FSM.…”