Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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A Study on Dynamic Material Properties of Functional High Explosive Formulation Simulant Subjected to Dynamic Loading

동적하중을 받는 기능성 고폭화약조성 시뮬런트 재료물성 연구

  • 박정수 (국방과학연구소) ;
  • 염기선 (국방과학연구소) ;
  • 박충희 (한국과학기술원 기계항공시스템학부) ;
  • 정세환 (한국과학기술원 기계항공시스템학부) ;
  • 이근득 (국방과학연구소) ;
  • 허훈 (한국과학기술원 기계항공시스템학부)
  • Received : 2013.06.10
  • Accepted : 2013.09.27
  • Published : 2013.12.05
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Abstract

This paper is concerned with the material properties of functional high explosive(FHX) simulant at various strain rates ranging from $10^{-4}/sec$ to $10^1/sec$. Material properties of FHX at high strain rates are important in prediction of deformation modes of FHX in a warhead which undergoes dynamic loading. Inert FHX stimulant which has analogous mechanical properties with FHX was utilized for material tests due to safety issues. Uniaxial tensile tests at quasi-static strain rates ranging from $10^{-4}/sec$ to $10^{-2}/sec$ and intermediate strain rates ranging from $10^{-1}/sec$ to $10^1/sec$ were conducted with JANNAF specimen using a tensile testing machine, INTRON 5583, and developed high speed material testing machine, respectively. Uniaxial compressive tests at quasi-static strain rates and intermediate strain rates were conducted with cylindrical specimen using a dynamic materials testing machine, INSTRON 8801. And cyclic compressive loading tests were performed with various strain rates and strains. Deformation behaviors were investigated using captured images obtained from a high-speed camera.

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References

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