Abstract

In elastic fracture analysis, stress intensity factors (K) and T-stress (T) are the two-important stress field characterizing parameters ahead at the crack-tip/front. In this paper, 3D finite element analyses were carried on Compact Tension Shear (CTS) mixed mode (I/II) fracture specimen with various thickness to width (B/W) ratios and loading angle (β) to evaluate the effect of loading angle on K and elastic T. For assort B/W ratios and β of the CTS mixed mode (I/II) specimen, the effective stress intensity factors (Keff) and T results predominantly vary from center to surface along the crack-front. The Keff and T results obtained in the present analyses were used to characterize the constraint effects in CTS mixed mode (I/II) fracture specimen.

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