Abstract
This paper is concerned with the material properties of functional high explosive(FHX) simulant at various strain rates ranging from <TEX>$10^{-4}/sec$</TEX> to <TEX>$10^1/sec$</TEX>. 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 <TEX>$10^{-4}/sec$</TEX> to <TEX>$10^{-2}/sec$</TEX> and intermediate strain rates ranging from <TEX>$10^{-1}/sec$</TEX> to <TEX>$10^1/sec$</TEX> 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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