Dynamic shear punch behavior of tungsten fiber reinforced Zr-based bulk metallic glass matrix composites. (May 2015)

• Record Type: Journal Article
• Authors: Chen, J.H.; Chen, Y.; Jiang, M.Q.; Chen, X.W.; Fu, H.M.; Zhang, H.F.; Dai, L.H.
• Is Part Of: International journal of impact engineering. Volume 79(2015:May)
• Page Start: 22
• Page End: 31
• Publication Date: 2015-05
• Subjects: Dynamic loading -- Shear punch -- Bulk metallic glass composite -- Tungsten fiber -- Failure mode; Impact -- Periodicals; Shock (Mechanics) -- Periodicals; Impact -- Périodiques; Choc (Mécanique) -- Périodiques; Impact; Shock (Mechanics); Periodicals; 620.1125
• DOI: 10.1016/j.ijimpeng.2014.07.006
• Languages: English
• ISSNs: 0734-743X

Abstract

Abstract: Dynamic shear punch tests were carried out on the tungsten fiber reinforced Zr-based bulk metallic glass composites. The experimental results show that with the increasing fiber volume fraction, the failure mode of the composites switches from shear to tensile fracture. A new failure criterion, based on the Tsai-Hill criterion and the unified failure criterion for bulk metallic glasses, is proposed to characterize fracture behavior of this bulk metallic glass composite. It is found that the shear-to-normal strength ratio α controls the transition of failure mode of this metallic glass composite. The underlying mechanism of the transition of failure mode is discussed as well. Highlights: Dynamic shear punch tests were carried out on the fiber/Zr-based BMG composite. The failure mode of the composite is found to change with the fiber volume fraction. A modified Tsai-Hill failure criterion is proposed for this composite. The shear-to-normal factor α controls the transition of failure mode.