Dynamic material performance of cold-formed steel hollow sections: a state-of-the-art review

2017, Volume 11, Issue 2

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Abstract

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Frontiers of Structural and Civil Engineering >> 2017, Volume 11, Issue 2 doi: 10.1007/s11709-017-0388-8

Dynamic material performance of cold-formed steel hollow sections: a state-of-the-art review

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. Department of Civil Engineering, University of Toronto, Toronto, Ontario M5S 1A4, Canada.. Department of Civil Engineering, Monash University, Victoria 3800, Australia.. College of Civil Engineering, Tongji University, Shanghai 200092, China

Accepted： 2017-04-19 Available online：2017-05-19

Abstract

This paper presents a literature review focused on the material performance of cold-formed, carbon steel, hollow structural sections under impulsive (highly dynamic) loading. Impulsive loading, represented by impact and blast, is characterized by a very rapid, time-dependent loading regime in the affected members and materials. Thus, the effect of high-strain-rate loading is initially reviewed. Next the material toughness, an important energy-absorption property and one measure of a material’s ability to arrest fracture, is considered by means of studying the Charpy V-notch behavior. The response of hollow sections under axial and lateral impact loading is then reviewed. ??Studies of blast on hollow sections, most of which fall under the categories of contact/near-field loading or far-field loading are presented. Under large-scale field blast experiments, cold-formed hollow sections have shown excellent behavior. Software for modeling blast loading and structural response, the latter including single degree of freedom analysis and explicit finite element analysis, is described and discussed.

Keywords

cold-formed steel ; hollow structural sections ; composites ; impulsive loading ; impact ; blast ; experimentation ; analysis ; material properties

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