作　　者： ; ; ;

机构地区： 广西科技大学汽车与交通学院

出　　处： 《轻金属》 2010年第11期56-59,共4页

摘　　要： 通过LS-DYNA模拟分析泡沫铝填充多棱柱的准静态过程。提出柱壳比(R)作为比较具有不同截面形状的泡沫铝填多棱柱的依据。通过重新定义比吸能和比力,实现泡沫铝填充多棱柱吸能性能的定量化分析。研究发现在具有相同柱壳比的条件下,泡沫铝填充四棱柱的吸能效率最高;泡沫铝填充八棱柱的综合吸能性能最优。 The behaviours of foamed aluminium-filled prisms were studied under quasi-static loading conditions by LS-DYNA.Column shell ratio（R） is proposed to compare foamed aluminium-filled prisms with different cross sections.Energy absorption quantitative analysis of foamed aluminium-filled prisms was carried out by redefining specific energy absorption and specific force.Specific energy absorption of foamed aluminium-filled square prism was highest;Comprehensive energy absorption performance of foamed aluminum-filled octagonal prism was best.

关 键 词： 泡沫铝 柱壳比 吸能 数值模拟

领　　域： [理学] [理学] [金属学及工艺] [一般工业技术] [金属学及工艺]