Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Structural Engineering and Mechanics Volume 87, Number 4, August25 2023 , pages 297-304 DOI: https://doi.org/10.12989/sem.2023.87.4.297 |
|
|
|
Tests on explosion-resisting properties of high-performance equal-sized-aggregate concrete composite sandwich plates |
||
Yizhong Tan, Songlin Yue, Gan Li, Chao Li, Yihao Cheng, Wei Dai and Bo Zhang
|
||
| Abstract | ||
| Targeted introduction of explosion-resisting and energy-absorbing materials and optimization of explosion-resisting composite structural styles in underground engineering are the most important measures for modern engineering protection. They could also improve the survivability of underground engineering in wartime. In order to test explosion-resisting and energy-absorbing effects of high-performance equal-sized-aggregate (HPESA) concrete, the explosive loading tests were conducted on HPESA concrete composite plates by field simple explosion craters. Time-history curves of the explosion pressure at the interfaces were obtained under six conditions with different explosion ranges and different thicknesses of the HPESA concrete plate. Test results show that under the same explosion range, composite plate structures with different thicknesses of the HPESA concrete plate differ significantly in terms of the wave-absorbing ability. Under the three thicknesses in the tests, the wave-absorbing ability is enhanced with the growing thickness and the maximum pressure attenuation index reaches 83.4%. The energy attenuation coefficient of the HPESA concrete plate under different conditions was regressively fitted. The natural logarithm relations between the interlayer plate thickness and the energy attenuation coefficient under the two explosion ranges were attained. | ||
| Key Words | ||
| energy absorption; explosion-resisting property; high-performance equal-sized-aggregate concrete; scaled explosion range | ||
| Address | ||
| Yizhong Tan: State Key Laboratory of Explosion Shock Prevention and Mitigation, National Defense Engineering College, Army Engineering University, Nanjing, 210007, China; Training Base, Army Engineering University, Xuzhou, 221004, China Songlin Yue, Gan Li, Chao Li, Yihao Cheng: State Key Laboratory of Explosion Shock Prevention and Mitigation, National Defense Engineering College, Army Engineering University, Nanjing, 210007, China Wei Dai: School of Science, Nanjing University of Science & Technology, Nanjing, 210094, China Bo Zhang: Training Base, Army Engineering University, Xuzhou, 221004, China | ||