A Study on Dynamic Fracture Behavior of Magnesium Alloys under Biaxial Stress

Abstract:

In this study, dynamic behavior of the crack under dynamic biaxial stress was investigated concerning of these situations. Specimen shape was assumed to be a biaxial fracture, and the load device was with a hydraulic high-speed biaxial experiment device, which this laboratory had developed. Dynamic stress intensity factors and strain behaviors in the crack tip, angle of the pre-crack and crack propagation direction, and relate about the dynamic fracture toughness value under a dynamic biaxial stress was studied.

• Periodical: Key Engineering Materials (Volumes 261-263)
• Pages: 331-336
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.261-263.331
• Online since: April 2004
• Authors: Akira Shimamoto, Ryo Kubota
• Keywords: Biaxial Stress, Caustic Method, Dynamic Fracture, Magnesium Alloy, Stress Intensity Factor (SIF)

References

[10] [20] [30] [40] [50] [60] [70] [80] [90] 0 1 2 3 4 5 crack angle(degree) KI (MPa࡮m^1/2) ٤� static� �� �� �� � ٨� dynamic 0� 45� 90� 90� Fig. 8. Relation between fracture toughness and crack angle under caustic method.