Study on Simplified Model of Pressure Loading in Adjacent Cabin with Internal Explosions in Cabin
Source abstract
Abstract
The study of explosion loadings in cabin structures is of great significance for evaluating structural damage. At present, most studies focus on the characteristics of explosion loadings in a single cabin. However, there are few studies on the loading characteristics of adjacent cabins under multi-cabin explosions, and there is no calculation model for calculating the load of adjacent cabins. In order to study the pressure loading characteristics of the adjacent cabin during an internal explosion, a simplified calculation model of the adjacent cabin load was constructed. The adjacent cabin environment was constructed by clamping the perforated baffle between the two cabins. The opening area of the perforated baffle accounts for 3%, 5%, 15%, and 20% of the area of the baffle. The pressure loadings of the adjacent cabin were measured by an implosion test in the adjacent cabin. A finite element simulation calculation was carried out for the test conditions. The results show that the rise time of the quasi-static pressure is in good agreement with the test results. Based on the above research, the pressure loading characteristics of the adjacent cabin were determined. A simplified model of pressure change during the pressure relief process from the explosion cabin to the adjacent cabin was obtained. Assuming an exponential decay process during pressure venting, a theoretical method for calculating the rise time of quasi-static pressure in adjacent cabins was derived. Compared with the experimental value, the maximum error is 15.9%, which can realize the prediction of the quasi-static pressure rise time of the adjacent cabin during the internal explosion. This calculation method can provide load input for internal explosion damage assessment of the complex structure of the multi-cabin.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Combustion and Detonation Processes · Structural Response to Dynamic Loads · Fire dynamics and safety research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, China
Chongqing Changjiang Electrical Appliances Industries Group Co., Ltd., Chongqing 404100, China
Funding
Youth Fund Project of Shanxi Province Basic Research Program-Free Exploration Category
References (36)
Show source-provided references
1. Experimental and numerical investigation of confined explosion in a blast chamber10.1016/j.jlp.2013.02.001 ↗
2. Scaling of confined explosion and structural response10.1016/j.tws.2023.110656 ↗
3. On Blast Pressure Analysis Due to a Partially Confined Explosion: III. Afterburning Effect10.1260/2041-4196.3.3.311 ↗
4. Ames, R.G., Drotar, J.T., Silber, J., and Sambrook, J. (2006, January 23–28). Quantitative distinction between detonation and afterburn energy deposition using pressure-time histories in enclosed explosions. Proceedings of the 13th International Detonation Symposium, Norfolk, VA, USA.
5. Baker, W.E. (1983). Explosion Hazard Sand Evaluation, Elsevier Publishing Company.
6. U.S. Department of Defense (2023). Structures to Resist the Effects of Accidental Explosions (UFC 3-340-02), U.S. Department of Defense.
7. Study on load characteristics and structural impact response propagation law of cabin internal explosion10.1016/j.oceaneng.2024.117582 ↗
8. Numerical investigation on the dynamic behavior of thermoplastic fiber-metal laminates subject to confined explosion loading10.1016/j.tws.2025.113354 ↗
9. Confined explosions: The effect of compartment geometry10.1016/j.jlp.2017.04.013 ↗
10. Pressure-Impulse diagrams for assessment of structural response due to a fully confined explosion10.1016/j.engfailanal.2023.107103 ↗
11. Sensitivity analysis of damage extent in naval ship compartments due to internal airborne explosions10.1016/j.ijnaoe.2024.100622 ↗
12. Experimental study on the TNT equivalence for blast parameters in a confined space10.1016/j.dt.2025.01.011 ↗
13. A reinforced concrete shear wall building structure subjected to internal TNT explosions: Test results and numerical validation10.1016/j.ijimpeng.2024.104950 ↗
14. Experimental study on the effects of equivalence ratio on vented methane-hydrogen mixture explosion in confined area10.1016/j.energy.2025.135646 ↗
15. Blast pressure analysis due to confined explosion-after effects10.1016/j.istruc.2020.08.057 ↗
16. Study on the characteristics of internal explosion loads in masonry-infilled reinforced concrete frame structures10.1016/j.jobe.2025.113243 ↗
17. Impact of the blockage ratio and void fraction of porous obstacle on gas explosion characteristics in semi-confined channel10.1016/j.ijhydene.2024.06.213 ↗
18. Simulation of obstacle spacing effects on premixed hydrogen-air explosion dynamics in semi-confined spaces10.1016/j.ijhydene.2025.01.316 ↗
19. Whether hydrogen blending in natural gas pipelines induce detonation? A numerical investigation of explosions in confined pipeline compressor plants10.1016/j.ijhydene.2025.04.495 ↗
20. Research on internal explosion loads in folded arch tunnels: A theoretical approach10.1016/j.tust.2024.105731 ↗
21. The effect of orifice plates with different shapes on explosion propagation of premixed methane–air in a semi-confined pipeline10.1016/j.jlp.2021.104498 ↗
22. Effect of internal explosion on tunnel secondary and adjacent structures: A review10.1016/j.tust.2022.104536 ↗
23. Pressures recorded in partially closed compartments at explosion of TNT charges10.1111/j.1749-6632.1968.tb11987.x ↗
24. Experimental studies on characteristics of blast loading when exploded inside ship cabin
25. Characteristics of confined blast loading in unvented structures10.1260/2041-4196.2.1.21 ↗
26. Study of the explosion process in a small scale experiment—structural loading10.1016/j.jlp.2004.05.003 ↗
27. Quasi-static pressure, duration, and impulse for explosions in structures10.1016/0020-7403(83)90059-0 ↗
28. Kingery, C.N., Schumacher, R.N., and Ewing, W.O. (1978). Internal Pressures from Explosions in Suppressive Structures, USA Ballistic Research Laboratory. BRL Memorandum Report ARBRL-MR-02848;.10.21236/ADA059966 ↗
29. Proctor, J.F., and Filler, W.S. (1972, January 8–10). A computerized technique for blast loads from confined explosions. Proceedings of the 14th Annual Explosives Safety Seminar, New Orleans, LA, USA.
30. Kinney, G.F., and Sewell, R.G.S. (1974). Venting of Explosions, Naval Weapons Center. NWC Tech. Mem. 2448;.
31. Carlson, R.W. (1945). Confinement of an Explosion by a Steel Vessel, LANL.
32. Moir, D.C. (1979). Safety Analysis of the M-2 Comfinement Systems, LANL.
33. Baker, W.E., Hokanson, J.C., Esparza, E.D., and Sandoval, N.R. (1983). Gas Pressure Loads with Invented and Unvented Structures, Southwest Research Institute.
34. Lloyd’s Register (2020). Rules and Regulations for the Classification of Naval Ships: Naval Ship Code (NSC), Lloyd’s Register Group Limited.
35. (1990). Structures to Resist the Effects of Accidental Explosions (Standard No. TM5-1300).
36. Dynamic response of steel cabin structure under blast loading from adjacent cabin10.1016/j.engstruct.2024.118213 ↗