Title of article :
Postbuckling of angle-ply laminated cylindrical shells with meridional curvature
Author/Authors :
Singh، نويسنده , , S. and Patel، نويسنده , , B.P. and Nath، نويسنده , , Y.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Pages :
6
From page :
359
To page :
364
Abstract :
The influence of meridional curvature on the postbuckling behaviour of angle-ply laminated cylindrical shells subjected to external pressure, torsional load, axial compression and uniform temperature rise is investigated using the semi-analytical finite element approach. The nonlinear governing equations are solved using Newton–Raphson iterative technique coupled with the adaptive displacement control method. The presence of asymmetric perturbation in the form of a small magnitude load spatially proportional to the linear buckling mode shape is considered to trace the postbuckling path. The variation of ply-angle and ply-thickness along the meridional direction is considered. The results presented reveal that the imperfection sensitivity of the cylindrical shells having negative Gaussian curvature decreases with the increase in the magnitude of H/r0 ratio for all the loading cases considered. The imperfection sensitivity of the positive Gaussian curvature shells increases for external pressure, torsional and thermal loading cases, whereas it decreases for axial loading case with the increase in H/r0 ratio.
Keywords :
Postbuckling , Semi-Analytical Finite Element , Meridional curvature , Cylindrical Shell , Angle-ply , thermomechanical
Journal title :
Thin-Walled Structures
Serial Year :
2009
Journal title :
Thin-Walled Structures
Record number :
1492962
Link To Document :
بازگشت