Computational Fracture Analyses of a Compact Tension Shear (CTS) Specimen with an Inclined Crack Plane

Abstract:

In this paper some results of 3D-finite element analyses of a modified CTS-specimen with an inclined crack plane are presented. It will be shown, that through the inclination of the crack plane, even under pure tension loading of the specimen, a superposition of all fracture modes I, II and III can be generated along the straight crack front of the inclined crack plane. Furthermore, mixed-mode I, II and III loading conditions can also be generated if this modified CTS-specimen is subject to an in-plane tension/shear loading. The computational fracture analysis is based on the calculation of separated energy release rates GI, GII and GIII along the crack front by the numerically highly effective modified virtual crack closure integral(MVCCI)-method and for the finite element(FE)-modelling the commercially available FE-code ANSYS is utilized.

• Periodical: Key Engineering Materials (Volumes 385-387)
• Pages: 741-744
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.385-387.741
• Online since: July 2008
• Authors: Qing Fen Li, Gui Ying Qi, Sheng Yuan Yan, Friedrich G. Buchholz
• Keywords: 3D Mixed-Mode Fracture, Computational Fracture Analysis, Modified Virtual Crack Closure Integral Method

References

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