کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
309367 513600 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Energy absorption properties of non-convex multi-corner thin-walled columns
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Energy absorption properties of non-convex multi-corner thin-walled columns
چکیده انگلیسی

In this paper, we proposed a strategy to improve energy absorption efficiency of thin-walled columns by introducing extra non-convex corners in the cross section. Several profiles of non-convex multi-corner thin-walled columns obtained through this strategy are presented and their energy absorption capacities under axial crush are investigated analytically and numerically. Explicit formulations for predicting the mean crushing force of non-convex multi-corner thin-walled columns are derived based on the theory of Super Folding Element method, and the predicting results of these formulations have good agreement with the numerical simulation performed by explicit non-linear finite element method. The comparisons of the non-convex columns with square column show that the non-convex multi-corner thin-walled columns have higher energy absorption capacity.


► A strategy to improve energy absorption of thin-walled columns has been proposed.
► Non-convex multi-corner columns have been developed.
► Energy absorption properties of new columns have been investigated numerically.
► Theoretical prediction of the mean crushing force consists of numerical result.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin-Walled Structures - Volume 51, February 2012, Pages 112–120
نویسندگان
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