An investigation on flattening process of metal rectangular columnsand nested column system

Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

MECHAERO02_315

تاریخ نمایه سازی: 13 شهریور 1396

Abstract:

This paper presents the responses of rectangular columns and nested column system under quasistatic 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. The crush behavior and energy absorbing responses of these specimens under flattening process were presented and compared with each other. Flattening tests were performed by a DMG machine, model 7166 at a constant cross head speed of 10mm/min in quasi-static condition. In all the experiments, load–deformation curves were obtained by machine chart recorder. It was found that the nested system absorbed 88% more enegy than single columns, appriximatelly.

Authors

Abbas Niknejad

Mechanical Engineering Department, Yasouj University, Yasouj, Iran

Asghar Dashti Rahmatabadi

Mechanical Engineering Department, Yazd Universty, Yazd, Iran

Mehdi Mansouri

Mechanical Engineering Department, Yazd Universty, Yazd, Iran

Seyed Mohammad Elahi

Mechanical and Aerospace Engineering Department, Shiraz University of Technology, Shiraz, Iran