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首页> 《中国测试》期刊 >本期导读>泡沫铝夹芯结构在油气爆炸荷载作用下的抗爆性能试验研究

泡沫铝夹芯结构在油气爆炸荷载作用下的抗爆性能试验研究

342    2020-09-17

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作者:何秋霖1, 石少卿1, 赵启明1, 蒋新生2, 隋顺彬1, 梁建军2

作者单位:1. 陆军勤务学院军事设施系,重庆 401331;
2. 陆军勤务学院火灾与爆炸安全防护重庆市重点实验室,重庆 401331


关键词:防灾减灾工程及防护工程;泡沫铝夹芯结构;油气爆炸;冲击波


摘要:

为研究泡沫铝夹芯结构对油气爆炸冲击波的衰减性能及影响其性能的因素,设计一种试验测试系统。在模拟坑道内,点燃混合均匀的油气混合物获取爆炸荷载,并通过调节油气浓度比例来控制爆炸荷载大小,对油气爆炸荷载作用下泡沫铝夹芯结构的防护性能进行定量分析。结果表明,当泡沫铝芯层厚度≥10 mm时,泡沫铝夹芯结构对油气爆炸冲击波的衰减效果优于实体金属结构;泡沫铝夹芯结构对油气爆炸冲击波的衰减效果随芯层厚度的增加而提升,但衰减效率呈逐渐减小趋势,试验得出的芯层最优厚度下限为16 mm。


Experimental study on the blast-resistant performance of aluminum foam sandwich structure under the effect of fuel-air mixture explosion
HE Qiulin1, SHI Shaoqing1, ZHAO Qiming1, JIANG Xinsheng2, SUI Shunbin1, LIANG Jianjun2
1. Department of Military Facilities, Army Logistics University of PLA, Chongqing 401331, China;
2. Chongqing Key Laboratory of Fire and Explosion Safety, Army Logistics University of PLA, Chongqing 401331, China
Abstract: In order to analyze the attenuation and other effective factors of aluminum foam sandwich structure to the fuel-air mixture explosion shock wave, this research designed a kind of testing system for experiments. In the tunnel model, by igniting the mixed fuel-air commixture, the explosive load can be obtained. Moreover, by adjusting the concentration of the fuel-air mixture to control the magnitude of the explosive loads, quantitative analysis about the protection performance of the aluminum foam sandwich structure can be depicted when under the blasting load generated by the fuel-air. The results show that when the thickness of the foamed aluminum interlayer is greater than or equal to 10 mm, the foam-aluminum sandwich structure has better effect in attenuating the fuel-air mixture explosion wave, compared to metal solid structure. Although the foam-aluminum sandwich structure has better attenuation effect towards the fuel-air mixture explosion wave with thicker interlayer, the efficiency of this attenuation effect is decreasing. After experiments, the minimum thickness of the optimal design is 16 mm.
Keywords: disaster prevention engineering and protection engineering;aluminum foam sandwich structure;fuel-air mixture explosion;shock wave
2020, 46(8):136-142  收稿日期: 2020-01-09;收到修改稿日期: 2020-04-02
基金项目: 重庆市自然科学基金项目(cstc2019jcyj-msxmX0215);重庆市高校优秀成果转化资助项目(KJZH7138);军队面上项目(CLJ19J019)
作者简介: 何秋霖(1981-),男,重庆市人,讲师,博士,主要从事防灾减灾工程及防护工程的研究
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