Experimental study on dynamic behavior ofthin circular plate of TiNi alloysubjected to transversal impact

Cui Shi-tang; Tang Zhi-ping; Zheng Hang

doi:10.11883/1001-1455(2014)04-0444-07

Volume 34 Issue 4

Sep. 2014

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Cui Shi-tang, Tang Zhi-ping, Zheng Hang. Experimental study on dynamic behavior ofthin circular plate of TiNi alloysubjected to transversal impact[J]. Explosion And Shock Waves, 2014, 34(4): 444-450. doi: 10.11883/1001-1455(2014)04-0444-07

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Cui Shi-tang, Tang Zhi-ping, Zheng Hang. Experimental study on dynamic behavior ofthin circular plate of TiNi alloysubjected to transversal impact[J]. Explosion And Shock Waves, 2014, 34(4): 444-450. doi: 10.11883/1001-1455(2014)04-0444-07

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Experimental study on dynamic behavior ofthin circular plate of TiNi alloysubjected to transversal impact

doi: 10.11883/1001-1455(2014)04-0444-07

CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230027, Anhui, China

Funds: Supported bythe National Natural Science Foundation of China (11072240)

More Information

Corresponding author: Tang Zhi-ping, zptang@ustc.edu.cn
Received Date: 2012-11-30
Rev Recd Date: 2013-02-01
Publish Date: 2014-07-25

Abstract

Abstract

The experimental investigation of thin circular plate of pseudo-elastic TiNi alloy under fixed supports and transversal impact loading was conducted using a revised apparatus of Hopkinson bar. The experimental result of pseudo-elastic TiNi alloy was compared with that of A3 steel. The nature of dynamic mechanical response of the structure in spatio-temporal scale, including the propagation of flexural wave in the plate, evolution of transformation zones and full-field out-of-plane displacement were derived. The results show that transformation zones and transformation hinge may generate near the center of the plate (about 5 mm) because of two-dimensional diffusion effect of the circular plate under impact loading. After unloading, the transformation hinge disappeared, and obvious residual deformation was observed in the A3 steel plate. The impact response of thin circular plate of TiNi alloy is controlled by the thermo-elastic martensite phase transformation and inverse transformation, which differs from the conventional elastic-plastic mechanism.
- solid mechanics,
- shock-induced phase transition,
- revised Hopkinson bar apparatus,
- shape memory alloy,
- transformation hinge,
- flexural wave

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References(11)

References

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