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http://dx.doi.org/10.9766/KIMST.2013.16.6.857

A Study on Dynamic Material Properties of Functional High Explosive Formulation Simulant Subjected to Dynamic Loading  

Park, Jungsu (ADD)
Yeom, Kee Sun (ADD)
Park, Chunghee (KAIST)
Jeong, Sehwan (KAIST)
Lee, Keundeuck (ADD)
Huh, Hoon (KAIST)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.16, no.6, 2013 , pp. 857-866 More about this Journal
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.
Keywords
Functional High Explosive Formulation(FHX); Simulant; Uniaxial Tensile Test; Uniaxial Compressive Test; Cyclic Compressive Loading Test; Strain Rate;
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