爆炸载荷下泡沫铝夹芯板变形与破坏模式的实验研究
Experimental Investigation into Deformation and Damage Patterns of Sandwich Plates with Aluminum Foam Core Subjected to Blast Loading
查看参考文献22篇
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文摘
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系统地开展了爆炸载荷作用下泡沫铝夹芯板变形与破坏的实验研究,获得了冲量45.6N?s、76.2N?s、104.6N?s、131.7N?s、183.6N?s 5种不同爆炸载荷作用下泡沫铝夹芯板背面板中心点的变形挠度,给出了泡沫铝夹芯板前面板、泡沫铝芯体和背面板在不同爆炸载荷作用下的变形与破坏模式,分析了泡沫铝芯体产生的剪切断裂和拉伸断裂两种不同机理。研究结果表明,泡沫铝芯体呈现"渐进式"压缩变形,泡沫铝夹芯板背面板中心点的变形挠度与爆炸冲量之间近似满足二次关系。 |
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其他语种文摘
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The deformation and damage patterns of clamped sandwich plates with aluminum foam core subjected to blast loading are investigated experimentally. The deflections of the center point on the rear face sheet of sandwich plates under five blast loadings are obtained. The deformation and damage patterns of the front face sheet, aluminum foam core and rear face sheet subjected to different blast loadings are given also. Two types of the fracture mechanism of the foam cores, which are shear fracture and tensile fracture, are analyzed. The research results show that the foam core subjected to intensive dynamic loading is deformed in a "progressive" compressive mode, and the maximum deflection of the rear face sheet quadratically increases with the blast impulse approximately. |
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来源
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兵工学报
,2016,37(8):1456-1463 【核心库】
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DOI
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10.3969/j.issn.1000-1093.2016.08.017
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关键词
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兵器科学与技术
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爆炸波
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泡沫铝
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夹芯板
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变形挠度
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变形与破坏模式
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地址
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1.
西安交通大学航天学院, 机械结构强度与振动国家重点实验室, 陕西, 西安, 710049
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火箭军工程大学核工程系, 陕西, 西安, 710025
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-1093 |
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学科
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力学 |
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基金
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国家自然科学基金项目
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陕西省自然科学基金
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文献收藏号
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CSCD:5789836
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