In-Plane Mixed-Mode Fracture of the Thin Sheet Metal

Abstract:

The length of crack extension under stable crack extension is measured by digital image correlation technology and based on mixed-mode I/II fracture test. Quantitative analyses of the fracture properties are provided for thin sheet metals at stable crack extension under mode I, mode II and mixed-mode I/II loading conditions. The strain field of the crack tip at crack initiation is calculated by VIC-2D. It is suggested that the location of crack initiation is not at the crack tip. The fracture of recycled thin sheet metals is tough due to the large plastic deformation; mode I crack is the most difficult to extend; the load-carrying capacity is the minimum in 45° loading.

• Periodical: Applied Mechanics and Materials (Volumes 444-445)
• Pages: 1301-1304
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.444-445.1301
• Online since: October 2013
• Authors: Jing Lv, Bang Cheng Yang, Chun Ran, Yong Ping Shao
• Keywords: Digital Image Correlation (DIC), Mixed-Mode Fracture, Strain Analysis, Thin Sheet Metal

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