Delamination Originating from Transverse Crack Tips in Laminates under Mechanical Loadings

Abstract

A singular finite element method is formulated utilizing the asymptotic solutions for displacements and stresses near the tip of interfacial crack between dissimilar anisotropic materials and the variational principle of a hybrid functional. Laminates with delamination originating from transverse crack tips are analyzed by the singular hybrid element at the delamination tip together with the conventional displacement-based elements around the hybrid element. Numerical results show the efficiency and accuracy of the present singular finite element for the analysis of the stress distributions near the tip of delamination in laminate under plane strain extension, antiplane shear and plane strain bending.

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References

1. Kondo, K. and Y. Yasue . 1995. "Transverse Crack and Delamination in Composite Laminates Subjected to Mechanical and Hygrothermal Loading." Proceedings of the 7th Japan-US Conference on Composite Materials, I. Kimpara , H. Miyairi and N. Takeda , eds., Kyoto, pp. 91-98.

2. Kim, Y. and S. Im . 1993. "Delamination Crack Originating from Transverse Cracking in Cross-ply Laminates under Various Loading." International Journal of Solids and Structures, 30(16): 2143-2161.

3. Kondo, K.

"Delamination of Laminates Subjected to Mechanical and Hygrothermal Loadings."

Proceedings of the 10th International Conference on Composite Materials, A. Poursartip and K. N. Street , eds., Whistler, I, pp. 213-220.