固支圆形泡沫铝夹芯板在爆炸作用下变形研究  

Study on Deformation of Clamped Circular Aluminium Foam Sandwich Panels Subjected to Explosion

作　　者：康建功 孙妙娟[1] KANG Jian-gong;SUN Miao-juan(Rongzhi College,Chongqing Technology and Business University,Chongqing 401320,China)

机构地区：[1]重庆工商大学融智学院

出　　处：《爆破》2019年第4期126-131,共6页Blasting

基　　金：重庆工商大学融智学院博士项目(20165001)

摘　　要：为研究泡沫铝夹芯板(简称"AFSP")的抗爆特性及其与泡沫铝板或实体金属板抗爆性能差异,对3种固支圆形板在钢管内油气混合物点火产生的爆炸荷载作用下残余变形进行试验研究。主要分析泡沫铝板在爆炸荷载下破坏特点、相同荷载条件下AFSP与实体金属板残余变形大小差异、面板材质与芯材厚度的变化对AFSP残余变形的影响等。试验结果显示:单独泡沫铝板在爆炸荷载作用下易发生整体剪切破坏;与实体板相比,芯材厚度为16 mm的AFSP在质量仅增加25.9%的条件下,残余变形减小48.5%;同载同重的钢面板较不锈钢面板AFSP的残余变形量减小30.7%;AFSP的芯材厚度由8 mm增加至16 mm,在荷载稍有增加时,残余变形反而减少了51.6%。AFSP较相同重量的实体金属板具有更好抵抗爆炸荷载的能力,AFSP的芯材厚度与面板材料是影响其抗爆性能的两个重要因素,AFSP是一种具有较好抗爆性能的复合材料。In order to study the blasting resistance characteristics of aluminum foam sandwich panels(AFSP) and its anti-explosion property difference with aluminum foam and solid metal plates,residual deformation of three typical clamped circular plates under the explosion loading caused by the ignition of oil and gas mixture in a steel tube was studied.The failure characteristics of the aluminum foam sheet under explosive loading was investigated.The residual deformation of AFSP and the solid metal plate under the same load condition was compared.The influence of thickness of panel material and core material on residual deformation of AFSP was studied.The test results show that the single foam aluminum plate is prone to shear failure under blasting loading.Compared with the solid plate,the residual deformation of the AFSP with a core thickness of 16 mm was reduced by 48.5% under the condition that the mass was only 25.9%.While the residual deformation of the steel panel with same weight is reduced by 30.7% compared with that of the stainless steel panel.The thickness of AFSP increased from 8 mm to 16 mm,but the residual deformation decreased by 51.6% when the load increased slightly.AFSP possessed a better ability to resist explosive loading than the solid metal plate with same weight.The core thickness and panel material of AFSP are two important factors affecting its explosive resistance,and AFSP has excellent explosive resistance.

关 键 词：结构动力响应 油气爆炸荷载 抗爆性能 泡沫铝夹芯板 残余变形 

分 类 号：O383[理学—流体力学]