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Chinese Journal of High Pressure Physics  > 1995  >  9(2): 96-106 .
ZHUANG Shi-Ming, FENG Shu-Ping, WANG Chun-Yan, SUN Cheng-Wei. Dynamic Fracture of TC4 and TC9 Titanium Alloy under High Strain Rates[J]. Chinese Journal of High Pressure Physics, 1995, 9(2): 96-106 . doi: 10.11858/gywlxb.1995.02.003
Citation: ZHUANG Shi-Ming, FENG Shu-Ping, WANG Chun-Yan, SUN Cheng-Wei. Dynamic Fracture of TC4 and TC9 Titanium Alloy under High Strain Rates[J]. Chinese Journal of High Pressure Physics, 1995, 9(2): 96-106 . doi: 10.11858/gywlxb.1995.02.003
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Dynamic Fracture of TC4 and TC9 Titanium Alloy under High Strain Rates

doi: 10.11858/gywlxb.1995.02.003

  • Southwest Instute of Filuid Physics, Chengdu 610003, China

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  • Corresponding author: ZHUANG Shi-Ming
  • Received Date: 20 Jun 1994
  • Rev Recd Date: 07 Feb 1995
  • Issue Publish Date: 05 Jun 1995
    Abstract
  • The experimental and numerical simulation results of dynamic failure of TC4 and TC9 titanium alloys under shock loadings induced by short pulse duration laser beam and electric gun drived Mylar plane flyer impacting the specimen is reported in this paper. The detail metallurgical analysis of recovered specimen indicates that for both loading conditions, the strain rate about 106 s-1 by electric gun drived flyer impacting target and the strain rate over 107 s-1 by short pulse duration laser beam loading, the failure and fracture of TC4 and TC9 titanium alloys are all ductile in the course of microvoid nucleation, growth and coalescence. The numerical investigation by one dimensional code SSS shows that to some extent the nucleation and growth (NAG) damage model can be used to describe the failure of TC4 and TC9 titanium alloys under high strain rates.

     

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