Delamination buckling of cylindrical laminates

Delamination buckling and postbuckling in composite cylindrical shells under combined axial compression and external pressure

“…Some of the results were compared with the corresponding analytical results obtained by Simitses et al [26]. An example of a cylindrical shell made of isotropic material with clamped ends under axial compression, similar to the model employed by Simitses et al [26], was presented in Ref. [3] to validate the proposed FE modelling approach.…”

“…The dimensions of the shell are such that L/r=5 and r/t=30. The numerical results of variation of critical load with delamination length and delamination thickness, obtained using the present method, were compared with those obtained by Simitses et al [26], as shown in Fig.1-ii. The critical loads are normalized with respect to the critical load of an intact cylinder.…”

“…Therefore, an efficient modelling approach was employed for the investigation of the buckling and postbuckling behaviour of these structures. In each case the results were compared with the corresponding results obtained by Simitses et al [25][26][27]. It is shown that ignoring the contact between the delaminated layers could result in wrong estimations of the critical buckling loads in cylindrical shells under axial compression or external pressure.…”

“…The most comprehensive analytical study is by Simitses et al [25][26][27]. Simitses et al [25][26][27] analytically predicted delamination buckling of cylindrical shells and panels. The load cases considered in their study were uniform axial compression and uniform external pressure, applied individually.…”

“…[17][18][19][20][21][22][23]. Due to its mathematical complexity and modelling, very limited information on the subject of delamination buckling of cylindrical shells and panels is currently available [3][4][24][25][26][27][28][29][30][31][32][33]. The most comprehensive analytical study is by Simitses et al [25][26][27].…”