Design and Computational Validation of a Split Hopkinson Pressure Bar for Dynamic Characterization of Materials Under High Strain Rate Tension Loading

2015 ◽  
Vol V4 (06) ◽  
Author(s):  
Aravind Sasikumar ◽  
Nikhil John Stephen Pushpagiri ◽  
Libin Lalu Koithara ◽  
Keyword(s):  
High Strain ◽  
Split Hopkinson Pressure Bar ◽  
Dynamic Characterization ◽  
Hopkinson Pressure Bar ◽  
Split Hopkinson ◽  
Characterization Of Materials ◽  
Pressure Bar ◽  
Tension Loading ◽  
Computational Validation

Dynamic Behaviors of near β-Type Ti-5Al-5Mo-5V-3Cr Titanium Alloys under High Strain Rate

2015 ◽  
Vol 816 ◽  
pp. 795-803
Author(s):  
Yan Ling Wang ◽  
Song Xiao Hui ◽  
Wen Jun Ye ◽  
Rui Liu
Keyword(s):  
Strain Rate ◽  
Titanium Alloys ◽  
High Strain ◽  
Split Hopkinson Pressure Bar ◽  
Failure Behavior ◽  
Hopkinson Pressure Bar ◽  
Fracture Failure ◽  
Split Hopkinson ◽  
Pressure Bar ◽  
Dynamic Loading Conditions

The mechanical properties and fracture failure behavior of the near β-type Ti-5Al-5Mo-5V-3Cr-X (X = 1Fe or 1Zr) titanium alloys were studied by Split Hopkinson Pressure Bar (SHPB) experiment under the dynamic loading conditions at a strain rate of 1.5 × 103 s-1–5.0 × 103 s-1. Results showed that the SHPB specimen fractured in the direction of maximum shearing stress at an angle of 45° with the compression axis. The fracture surface revealed the shear and tension zones with cleavage steps and parabolic dimples. Severe early unloading was observed on the Ti-5553 alloy under a strain rate of 4,900 s-1 loading condition, and the dynamic property of the Ti-55531Zr alloy was proved to be the optimal.

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