Design and Analysis of Thermal Protection of Complex Structure with High Explosives under Fire Conditions

doi:10.3969/j.issn.1000-1093.2014.08.021

Abstract

Abstract: The complex structure with high explosives may encounter an accidental fire event during storage, transportation, service or use. The objective of thermal protection design is that the highest temperature of explosives in the complex structure should not exceed 343 K(70 ℃) in 30 min under fire condition. Some thermal protection measures are presented by analyzing the main factors that affect the temperature rise of the explosives, which are to reduce the emissivity of shell surface, increase the thermal resistance in structural supports and use phase change materials for heat leading. The thermal protection effects of different schemes are computed and analyzed using FEM numerical analysis method. The results show that single measure can only reduce a local temperature, and the combining measures can satisfy the design requirement.

Key words: ordnance science and technology, structure with explosives, thermal protection design, fire, thermal response simulation

CLC Number:

WU Song， LI Ming-hai， ZHANG Zhong-li. Design and Analysis of Thermal Protection of Complex Structure with High Explosives under Fire Conditions[J]. Acta Armamentarii, 2014, 35(8): 1275-1280.

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