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

Cameron B. RITCHIE, Jeffrey A. PACKER, Xiao-Ling ZHAO, Amin HEIDARPOUR, Yiyi CHEN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 2,   Pages 209-227 doi: 10.1007/s11709-017-0388-8

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    

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Development of Key Technologies for Intelligent Research and Development of New Materials

Su Yanjing, Yang Mingli, Zhu Weili, Zhou Kechao, Xue Dezhen, Wang Hong, Xie Jianxin

Strategic Study of CAE 2023, Volume 25, Issue 3,   Pages 161-169 doi: 10.15302/J-SSCAE-2023.03.015

Abstract:

The rapid development of key technologies for the intelligent research and development (R&D) of new materials has significantly promoted the R&D efficiency and industrialization of materials and attracted global attention. China’s development in this field lags behind the advanced international level in terms of key technologies and infrastructures, which has restricted the original innovation and industrial development of the material sector. This study summarizes the key technologies involving the intelligent R&D of new materials, explores the developing status of these key technologies in China and abroad, and analyzes the challenges faced by China. Moreover, the intelligent R&D technology system is summarized including intelligent computing and design technologies and software, autonomous/intelligent experiment technologies and equipment, artificial-intelligence-driven basic algorithms and technologies, digital twins, intelligent R&D platforms and collaborative innovation networks. Furthermore,countermeasures are proposed from the aspects of innovative ecology construction, industrial environment improvement, standards system establishment, talent training, and international cooperation. 

Keywords： new materials     artificial intelligence     autonomous experimentation     intelligent computing     big data of    

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Title Author Date Type Operation

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

Cameron B. RITCHIE, Jeffrey A. PACKER, Xiao-Ling ZHAO, Amin HEIDARPOUR, Yiyi CHEN

Journal Article

Development of Key Technologies for Intelligent Research and Development of New Materials

Su Yanjing, Yang Mingli, Zhu Weili, Zhou Kechao, Xue Dezhen, Wang Hong, Xie Jianxin

Journal Article