TY - GEN
T1 - Microscopic Analysis of Ultrasonic Attenuation of Polymer Bonded Explosives
AU - Pan, Qinxue
AU - Xu, Xiaoyu
AU - Xu, Lang
AU - Jia, Yuping
AU - Liu, Xiaohao
AU - Xiao, Dingguo
AU - Chang, Meile
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - The ultrasonic attenuation coefficient is sensitive to the internal constituent components of the material, and the effective entry of ultrasonic waves into the material is of great significance for the development of non-destructive testing. In this paper, based on DIGIMAT/FE, a mesoscopic model of materials is built, covering two phases of explosive particles and binder, using ABAQUS/EXPLICT to load ultrasonic loading of materials, extracting internal unit stress-time curves and stress wave propagation clouds, and establishing the relationship between the ultrasonic attenuation coefficient of the bonded explosive and the different mass ratio of the explosive particles. Taking the RDX/Estane composite adhesive as an example, the volume fraction of explosive particles RDX and the influence of ultrasonic frequency on the sound attenuation coefficient were studied. The numerical simulation results of the model were compared with the real experimental data to verify the validity of the model. This numerical model method can effectively guide the acoustic experimental process of the material and provide a theoretical basis for the non-destructive testing of materials.
AB - The ultrasonic attenuation coefficient is sensitive to the internal constituent components of the material, and the effective entry of ultrasonic waves into the material is of great significance for the development of non-destructive testing. In this paper, based on DIGIMAT/FE, a mesoscopic model of materials is built, covering two phases of explosive particles and binder, using ABAQUS/EXPLICT to load ultrasonic loading of materials, extracting internal unit stress-time curves and stress wave propagation clouds, and establishing the relationship between the ultrasonic attenuation coefficient of the bonded explosive and the different mass ratio of the explosive particles. Taking the RDX/Estane composite adhesive as an example, the volume fraction of explosive particles RDX and the influence of ultrasonic frequency on the sound attenuation coefficient were studied. The numerical simulation results of the model were compared with the real experimental data to verify the validity of the model. This numerical model method can effectively guide the acoustic experimental process of the material and provide a theoretical basis for the non-destructive testing of materials.
KW - Polymer bonded explosive
KW - explosive particle volume fraction
KW - mesoscopic model
KW - ultrasonic attenuation coefficient
UR - http://www.scopus.com/inward/record.url?scp=85072380612&partnerID=8YFLogxK
U2 - 10.1109/ICMA.2019.8816516
DO - 10.1109/ICMA.2019.8816516
M3 - Conference contribution
AN - SCOPUS:85072380612
T3 - Proceedings of 2019 IEEE International Conference on Mechatronics and Automation, ICMA 2019
SP - 2041
EP - 2046
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 -