Analysis of cracks emanating from a circular hole in an orthotropic plate under mixed mode deformation

✍ Scribed by S.K. Cheong; C.S. Hong

• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 845 KB
• Volume: 31
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(88)90068-9

✦ Synopsis

This paper investigates the problem of cracks emanating from a circular hole in an orthotropic infinite plate. The mixed-mode stress intensity factors are calculated by using the modified mapping-collocation method. To investigate the effect of anisotropy and circular hole boundary on the crack tip singularity, stress intensity factors are presented as functions of the no~ali~d crack length for various types of laminated composites. The results indicate a strong dependence of the stress intensity factor on the material anisotropy and geometry. Off-axis laminate shows mixed mode deformation due to inplane normal-shear coupling.