A Study on the Fracture Behavior of Magnesium and Aluminium Alloy under Dynamic Biaxial Stress

Abstract:

In this study, the dynamic behaviors of cracks under dynamic biaxial stress are investigated. We conduct dynamic loading fracture experiments on the aluminum (2024-T3) and the magnesium alloy (AZ31B-O) under equitable biaxial stress with a hydraulic high-speed biaxial experimental machine. The processed specimens are cruciform with a crack. Different kinds of cracks are defined by their crack angles. We analyze the results by the caustic method. We obtained the stress intensity factor and the fracture toughness value in the neighborhood of the crack tip under dynamic biaxial stress. We analyzed the obtained data, and then, we compared results.

• Periodical: Key Engineering Materials (Volumes 297-300)
• Pages: 1579-1584
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.297-300.1579
• Online since: November 2005
• Authors: Do Yeon Hwang, Akira Shimamoto, Ryo Kubota
• Keywords: Caustics Method, Dynamic Fracture, Fracture Toughness, Stress Intensity Factor (SIF)

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