کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
308481 513555 2016 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Quasi-static, impact and energy absorption of internally nested tubes subjected to lateral loading
ترجمه فارسی عنوان
جذب نیمه استاتیک، ضربه و انرژی لوله های توزیع شده داخلی که تحت بارگذاری جانبی قرار دارند
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


• The responses of nested tube systems are investigated under lateral loading.
• The various nested tube systems are compared using performance indicators.
• Parametric study is performed using validated finite element models.

This paper presents the responses of nested tube systems under quasi-static and dynamic lateral loading. Nested systems in the form of short internally stacked tubes were proposed as energy absorbing structures for applications that have limited crush zones. Three configurations of nested tube systems were experimentally analysed in this paper. The crush behaviour and energy absorbing responses of these systems under various loading conditions were presented and discussed. It was found that the quasi-static and dynamic responses of the nested systems were comparable under an experimental velocity of v=4.5 m/sec. This is due to insignificant strain rate and inertia effects of the nested systems under the applied velocity.The performance indicators, which describe the effectiveness of energy absorbing systems, were calculated to compare the various nested systems and the best system was identified.Furthermore, the effects of geometrical and loading parameters on the responses of the best nested tube system were explored via performing parametric analysis.The parametric study was performed using validated finite element models. The outcome of this parametric study was full detailed design guidelines for such nested tube energy absorbing structures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin-Walled Structures - Volume 98, Part B, January 2016, Pages 337–350
نویسندگان
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