نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشکده مهندسی مکانیک، دانشگاه صنعتی قم، قم، ایران
2 گروه ساخت و تولید، دانشکده مهندسی مکانیک، دانشگاه کاشان، کاشان، ایران
3 استادیار، گروه مهندسی مواد و متالورژی، دانشگاه فنی و حرفه ای، تهران، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In this article, the effect of filling foam on the energy absorption capability of hybrid tubes with different thicknesses of the composite layer has been investigated experimentally. For this purpose, 10 aluminum/woven glass fiber/polyester resin hybrid tubes with 5 different thicknesses of the composite layer between 0 and 1.75 mm were produced by manual tape winding on an aluminum tube with an outer diameter of 42 mm and a thickness of 1 mm, then, 5 of these tubes were filled with polyurethane foam with free density of 40 kg/m3. Afterwards, the hybrid tubes were subjected to the quasi-static axial compression test using a universal pressure testing machine with a constant displacement rate of 10 mm/min until their complete crushing, and the specific energy absorption, crushing force efficiency, and crushing mode shapes were extracted for each tube. The results show that in the low thicknesses of the composite layers, filling the tubes with polyurethane foam effectively improves the specific energy absorption and the crushing force efficiency. However, the role of the foam becomes less effective and even negative in the high thicknesses of the composite layers.
کلیدواژه‌ها [English]
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