Crashworthiness performance and microstructural characteristics of foam-filled thin-walled tubes under diverse strain rate 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics
年/卷/期
2019 / 775 /
页码
675-689
ISSN号
0925-8388
作者单位
Sandip Inst Technol & Res Ctr, Dept Mech Engn, Nasik 422213, MH, India;Sandip Inst Technol & Res Ctr, Dept Mech Engn, Nasik 422213, MH, India;Politehn Univ Timisoara, Dept Mech & Strength Mat, 1 Mihai Viteazu Ave, Timisoara 300222, Romania;
作者
Rajak, Dipen Kumar;Mahajan, Nikhil N.;Linul, Emanoil;
摘要
The implementation of Aluminum Alloy Foam (AAF) has made an impact in automobile and aerospace applications where crash energy absorption, vibration and sound damping and weight reduction is obligatory. The AAF is an emerging lightweight material providing high strength and stiffness at relatively low density. This research is carried out to quantify the energy absorption of mild steel reinforced AAF having empty mild steel and foam-filled tubes for different strain rates and geometry parameters. The AAF used in the current study is AlSi10Mg foam of densities 0.45, 0.65, 0.85 g/cm(3), which is produced using melt route process. The circular, square and rectangular geometries were tested at strain rates of 0.1, 1, 10 mm/s. From the obtained compressive stress-strain curves Specific Energy Absorption (SEA), Total Energy Absorption (TEA), plateau stress of the empty and filled sections were determined, which were then evaluated. AAF was assessed by both light and electron microscopy. Field Emission Scanning Electron Microscope (FESEM) and Analysis of Variance (ANOVA) technique was employed to investigate the highest contributing factor in energy absorption. It was observed that foam filled tube can absorb more energy than empty tubes before reaching densification point. (C) 2018 Elsevier B.V. All rights reserved.
机翻摘要
暂无翻译结果,您可以尝试点击头部的翻译按钮。
关键词/主题词
Aluminum alloy foam;Density;Strain rate;Energy absorption capability;Microstructure;ANOVA technique;
若您需要申请原文,请登录。

最新评论

暂无评论。

登录后可以发表评论

意见反馈
返回顶部