Solution Methods for General Stress Concentrators in Anisotropic Heterogeneous Media
The increasing use of fibre-reinforced composites in high performance structures has brought a renewed interest in the analysis of cracks, wedges, and multi-material wedges in anisotropic materials. This paper will address three crucial stages of the general stress concentrator analysis: i) numerical procedures for the determination of eigenvalues and eigenvectors in Williams-like asymptotic expansion for multi-material wedge; ii) approaches to an accurate calculation of the near crack tip fields – the application of so-called two-state (or mutual) conservation integrals; iii) application of fracture criteria for the assessment of fracture inception at the general stress concentrators - concept of the so called finite fracture mechanics.
J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel
M. Kotoul et al., "Solution Methods for General Stress Concentrators in Anisotropic Heterogeneous Media ", Key Engineering Materials, Vols. 348-349, pp. 677-680, 2007