The interlaminar crack-tip response in a fiber-reinforced composite laminate

✍ Scribed by Hyung Jip Chol; S. Thangjitham

• Publisher: Springer Netherlands
• Year: 1994
• Tongue: English
• Weight: 950 KB
• Volume: 66
• Category: Article
• ISSN: 1573-2673
• DOI: 10.1007/bf00020078

✦ Synopsis

A solution is presented for the problem of an interlaminar crack in a laminated fiber-reinforced composite material. The theory of anisotropic elasticity under a state of generalized plane deformation is employed as a basic framework of this study. In the analytical model, dissimilar anisotropic half-spaces with different fiber orientations which are bound together by a matrix interlayer are considered. The interlayer approximates the matrix-rich interlaminar region containing the crack. The stiffness matrix approach is utilized and the current crack problem is reduced to solving a system of singular integral equations. The singular response of an intedaminar crack to in-plane normal, in-plane shear, and anti-plane shear loadings is evaluated in terms of mixed-mode stress intensity factors. Under each of the loading conditions, the parametric effects of laminate stacking sequence, relative crack size, crack location, and fiber volume fraction are addressed.