Delamination Buckling and Growth in Rings under Pressure
Publication: Journal of Engineering Mechanics
Volume 126, Issue 10
Abstract
A delaminated composite ring under external pressure is studied to understand the effect of curvature on delamination buckling and growth. Examples with differing crack lengths and delamination locations were considered. In all cases, the delamination surfaces come in contact rather early in the loading history, no matter what the initial imperfections are assumed to be. Furthermore, the delaminated part never becomes separated from the main ring. The modes of buckling given by standard linear stability analysis do not play any role in the behavior. Strain energy release rates were computed with the objective of predicting possible crack growth. Because of the contact, total energy release rate is dominated by the shear mode. Because the critical values of energy release rates are generally much higher in the shear mode than in the opening mode, one may conclude that shells tend to be more delamination tolerant than plates in which the opening modes tend to dominate.
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References
1.
ABAQUS/standard; version 5.8. (1999). Hibbitt, Karlsson and Sorensen, Inc.
2.
Fu, L., and Waas, A. M. ( 1995). “Response of thick composite rings under uniform external pressure.” Comp. and Struct., 31, 325–338.
3.
Kutlu, Z. S. ( 1991). “Compression response of laminated composite panels containing multiple delamination.” DSc thesis, Stanford University, Stanford, Calif.
4.
Marshall, J. G., and Moshaiov, A. ( 1990). “The buckling of delaminated rings subjected to hydrostatic pressure.” Comp. and Struct., 14, 193–211.
5.
Rybicki, E. F., and Kanninen, M. F. ( 1977). “A finite element calculation of stress intensity factors by a modified crack closure integral.” Engrg. Fracture Mech., 9, 931–938.
6.
Shahwan, K., and Waas, A. M. ( 1994). “Mechanical model for the buckling of unilaterally constrained rectangular plates.” Int. J. Solids and Struct., 131(1), 75–87.
7.
Shahwan, K., and Waas, A. M. ( 1997). “Non-self-similar decohesion of unilaterally constrained delaminations.” Proc., Royal Soc., London, 453, 515–550.
8.
Shahwan, K., and Waas, A. M. ( 1998). “Buckling of unilaterally constrained plates: Applications to study of delamination in layered structures.” J. Franklin Inst., 1335B(6), 1009–1039.
9.
Simites, G. J., and Chen, Z. Q. ( 1988). “Buckling delaminated long cylindrical panels under pressure.” Comp. and Struct., 28(2), 173–184.
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Received: Oct 7, 1999
Published online: Oct 1, 2000
Published in print: Oct 2000
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