Mixed-Mode I/II Crack Extension in Thin Sheet Metal

Abstract:

Real-time displacement in stable crack tearing was measured by digital image correlation technique. Quantitative analyses were provided on mixed-mode Ⅰ/Ⅱ fracture and critical CTOA for recycled thin sheet metals. It is shown that the fracture of recycled thin sheet metals is tough due to the large plastic deformation, and mixed-mode crack is easier to extend than mode Ⅰ crack. The critical CTOA at stable crack tearing is constant and can be used as a fracture criterion for the thin sheet metals.

• Periodical: Applied Mechanics and Materials (Volumes 275-277)
• Pages: 156-159
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.275-277.156
• Online since: January 2013
• Authors: Yong Ping Shao, Bang Cheng Yang, Chun Ran, Jing Lv
• Keywords: Critical CTOA, Digital Image Correlation (DIC), Mixed-Mode Crack, Thin Sheet Metal

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