TY - GEN
T1 - Prediction of Effective Elastic Modulus of Polymer Bonded Explosive Based on Digimat
AU - Pan, Qinxue
AU - Liu, Xiaohao
AU - Xu, Lang
AU - Jia, Yuping
AU - Xu, Xiaoyu
AU - Chang, Meile
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - Using Digimat-FE, a representative volume element (RVE) model was constructed that reflects the true mesostructure of PBX explosives. The model consists of three phases of explosive particles, binder and pores. Through Digimat-MF, various factors affecting the effective elastic modulus of PBX explosives were investigated, including the elastic modulus, volume fraction, morphology, gradation, porosity and pore diameter of the explosive particles. The calculation results show that the higher the volume fraction of explosive particles, the larger the effective elastic modulus of PBX, and the increase of the effective elastic modulus of PBX is obviously increased when the volume fraction exceeds 60%. The morphology of the explosive particles has little effect on the effective elastic modulus of the PBX explosive, while the grading of the explosive particles has a great influence. The existence of pores makes the effective elastic modulus of PBX explosives significantly reduced, and the increase of porosity makes the effective elastic modulus decrease exponentially; the increase of pore diameter makes the effective elastic modulus of PBX explosives decrease.
AB - Using Digimat-FE, a representative volume element (RVE) model was constructed that reflects the true mesostructure of PBX explosives. The model consists of three phases of explosive particles, binder and pores. Through Digimat-MF, various factors affecting the effective elastic modulus of PBX explosives were investigated, including the elastic modulus, volume fraction, morphology, gradation, porosity and pore diameter of the explosive particles. The calculation results show that the higher the volume fraction of explosive particles, the larger the effective elastic modulus of PBX, and the increase of the effective elastic modulus of PBX is obviously increased when the volume fraction exceeds 60%. The morphology of the explosive particles has little effect on the effective elastic modulus of the PBX explosive, while the grading of the explosive particles has a great influence. The existence of pores makes the effective elastic modulus of PBX explosives significantly reduced, and the increase of porosity makes the effective elastic modulus decrease exponentially; the increase of pore diameter makes the effective elastic modulus of PBX explosives decrease.
KW - Effective elastic modulus prediction
KW - Polymer bonded explosive
KW - Porosity
KW - Representative volume element
UR - https://www.scopus.com/pages/publications/85072406869
U2 - 10.1109/ICMA.2019.8816351
DO - 10.1109/ICMA.2019.8816351
M3 - Conference contribution
AN - SCOPUS:85072406869
T3 - Proceedings of 2019 IEEE International Conference on Mechatronics and Automation, ICMA 2019
SP - 2407
EP - 2411
BT - Proceedings of 2019 IEEE International Conference on Mechatronics and Automation, ICMA 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 16th IEEE International Conference on Mechatronics and Automation, ICMA 2019
Y2 - 4 August 2019 through 7 August 2019
ER -