Wide range temperature-dependent deformation and fracture mechanisms for 8701 under dynamic and static loading

Guo, Hui; Wu, Yueshen; Huang, Fenglei

doi:10.1039/c8ra01169a

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…However, the critical strains of PBX transition from linear elasticity to elastic-plastic stage were not affected. All these results are consistent with the experimental results of Guo [31] et al…”

Section: Resultssupporting

confidence: 93%

Mesoscale Simulation to Study Constitutive Properties of TATB/F2314 PBX

Zhang

Sang

et al. 2019

Materials

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Material Point Method (MPM) mesoscale simulation was used to study the constitutive relation of a polymer bonded explosive (PBX) consisting of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) and a fluorine polymer binder F2314. The stress-strain variations of the PBX were calculated for different temperatures and different porosities, and the results were found to be consistent with experimental observations. The stress-strain relations at different temperatures were used to develop the constitutive equation of the PBX by using numerical data fitting. Stress-strain data for different porosities were used to establish the constitutive equation by fitting the simulation data to an improved Hashion-Shtrikman model. The equation can be used to predict the shear modulus and bulk modulus of the PBX at different densities of the sample. The constitutive equations developed for TATB/F2314 PBX by MPM mesoscale simulation are important equations for the numerical simulations of the PBX at macroscale. The method presented in this study provides an alternative approach for studying the constitutive relations of PBX.

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Section: Resultssupporting

confidence: 93%