Collaborative Research: Reconfiguring Steel Structures: Energy Dissipation and Buckling Mitigation Through the Use of Steel Foams

合作研究：重构钢结构：通过使用泡沫钢进行能量耗散和屈曲缓解

• 批准号: 0970059
• 负责人: Jerome Hajjar
• 金额: $ 5.37万
• 依托单位: Northeastern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-07-01 至 2013-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0970059&HistoricalAwards=false
• 关键词: Collaborative; Research; Reconfiguring; Steel; Structures

The research objectives of this award are to characterize the mechanical properties of novel steel foams and determine whether this new class of materials presents opportunities for transformative improvement of the performance of civil structures. Although other kinds of metal foams serve well established purposes in the aerospace and automotive industries, the advent of manufacturing techniques for steel foams opens the door to low cost mass production of a material suitable for civil structural application. The research program consists of experiments to characterize the structure and mechanical properties of the material and simulations to establish proof-of-concept applications of steel foams to civil structures. The target applications are energy dissipating devices to improve seismic performance of building systems and selective application of steel foam to improve the strength and ductility of thin-walled steel structural members.If successful, this research program will spur increased research and development work leading to low-cost mass production of steel foams, and will have identified methods for improving the performance of civil structures during extreme loading events. The potential benefits accrue to society through improved structural performance and incentive for the steel industry to develop new manufacturing capabilities. The research is closely connected to the steel industry and the practice of structural design through an industrial advisory board comprising practicing engineers and steel industry professionals. A vertically integrated, collaborative research team spanning from the undergraduate to full professor levels across three institutions of higher learning, and a program of outreach targeting graduate students and high school students from under-represented groups, ensures that the project will have significant workforce development and mentorship impacts.

该奖项的研究目标旨在表征新型钢泡沫的机械性能，并确定这种新的材料是否为改善民用结构的性能带来了机会。 尽管其他类型的金属泡沫在航空航天和汽车行业中都具有良好的目的，但钢泡沫制造技术的出现为低成本的质量生产打开了适合民用结构应用的材料。 该研究计划包括实验，以表征材料和仿真的结构和机械性能，以建立钢铁泡沫对民用结构的概念验证应用。 目标应用是耗能设备，以提高建筑系统的地震性能以及选择性应用钢泡沫以提高薄壁钢结构构件的强度和延展性。如果成功，该研究计划将刺激增加的研究和开发工作，从而导致低成本的质量生产钢泡沫，并将鉴定出在极端负荷事件中改善土木结构的性能的方法。 通过改善结构性绩效和钢铁行业发展新制造能力的动力，潜在的收益为社会带来了。 这项研究与钢铁行业密切相关，并通过包括执业工程师和钢铁行业专业人员的工业咨询委员会的结构设计实践。 一个从本科到三个高等教育机构的垂直整合，合作的研究团队，从本科到完整的教授级别，以及针对来自代表性不足的小组的研究生和高中生的宣传计划，可确保该项目将对劳动力发展和指导影响。