NSF East Asia and Pacific Summer Institute (EAPSI) for FY 2013 in Japan

2013 财年 NSF 东亚及太平洋夏季学院 (EAPSI) 在日本举行

• 批准号: 1310996
• 负责人: Andrew Burton
• 金额: $ 0.51万
• 依托单位: Burton Andrew R
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-06-01 至 2014-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1310996&HistoricalAwards=false
• 关键词: NSF; East; Asia; Pacific; Summer

This action funds Andrew Robert Burton of the University of Michigan, Ann Arbor to conduct a research project in Engineering during the summer of 2013 at the Disaster Prevention Research Institute of Kyoto University in Kyoto, Japan. The project title is "A Patterned Thin Film Sensor for Damage Detection in Steel Frame Connections." The host scientist is Masayoshi Nakashima.The destruction caused by recent earthquakes has demanded new methods for performance monitoring of critical infrastructure. Paramount to this goal of post-event damage assessment is reliable, quantitative data for informed structural safety characterizations. This project addresses this challenge through the development of patterned carbon nanotube (CNT) thin film sensors tailored to detect specific failure modes in steel frame connections. These thin film sensors are being created in the Lurie Nanofabrication Facility at the University of Michigan, Ann Arbor by patterning CNT-polymer films on parylene substrates using optical lithography and then instrumented through other processes common to microelectromechanical systems. These patterns are being designed for electrical sensitivity that is specific to damage behaviors experienced by steel frame connections under seismic loading. The films are being tested at Kyoto University on a partial-scale steel test frame. They are epoxy bonded to the frame connections and then connected to wireless sensor networks for data acquisition. A large-scale shake table is used to simulate a seismic event on these frames. Data is collected from these sensors during and directly following the event and the sensor signals from each test is being analyzed in relation to the observed structural damage. This project provides two highly-valuable results as CNT thin films will reach a scale necessary for practical civil infrastructure applications and the need for rapid post-seismic damage detection will be addressed.Broader impacts of an EAPSI fellowship include providing the Fellow a first-hand research experience outside the U.S.; an introduction to the science, science policy, and scientific infrastructure of the respective location; and an orientation to the society, culture and language. These activities meet the NSF goal to educate for international collaborations early in the career of its scientists, engineers, and educators, thus ensuring a globally aware U.S. scientific workforce. Furthermore, this project will spark subsequent partnerships facilitating transnational human connections that provide the basic infrastructure for global research. Most immediately this will aid both societies in the shared ambition for increased public safety through performance characterization of critical infrastructure. Following completion, the project will strengthen engineering understanding, far beyond those involved, through presentations and educational outreach by the Fellow.

这一行动资助了密歇根大学安娜堡分校的安德鲁·罗伯特·伯顿于2013年夏天在日本京都大学灾害预防研究所开展了一个工程学研究项目。该项目的标题是“一种用于钢框架节点损伤检测的图案化薄膜传感器”。主持会议的科学家是中岛正吉。最近地震造成的破坏需要新的方法来监测关键基础设施的性能。对于事后损害评估的这一目标来说，最重要的是可靠的、定量的数据，以便进行知情的结构安全表征。该项目通过开发图案化碳纳米管(CNT)薄膜传感器来应对这一挑战，该传感器专为检测钢框架连接中的特定故障模式而量身定做。这些薄膜传感器是在密歇根大学安娜堡分校的Lurie纳米加工设施中创建的，方法是使用光学光刻在对二甲苯衬底上制作碳纳米管聚合物薄膜，然后通过微电子机械系统常见的其他工艺进行仪器测量。这些模式是为特定于钢框架连接在地震荷载下经历的破坏行为的电气敏感度而设计的。这些薄膜正在京都大学的一个部分规模的钢质测试框架上进行测试。它们被环氧连接到框架连接上，然后连接到无线传感器网络进行数据采集。使用大型振动台来模拟这些框架上的地震事件。在事件发生期间和紧接着发生的事件之后，从这些传感器收集数据，并根据观察到的结构损伤来分析来自每个测试的传感器信号。该项目提供了两项极具价值的成果，因为碳纳米管薄膜将达到实际民用基础设施应用所需的规模，并将满足快速震后破坏检测的需求。EAPSI奖学金的广泛影响包括为研究员提供美国以外的第一手研究经验；对各自地点的科学、科学政策和科学基础设施的介绍；以及对社会、文化和语言的指导。这些活动符合NSF的目标，即在其科学家、工程师和教育工作者的职业生涯早期为国际合作进行教育，从而确保拥有一支具有全球意识的美国科学队伍。此外，该项目还将促进后续的伙伴关系，促进跨国人员联系，为全球研究提供基本基础设施。最直接的是，这将有助于两个社会通过关键基础设施的性能特征来实现提高公共安全的共同抱负。完成后，该项目将通过该研究员的演讲和教育宣传，加强对工程学的理解，远远超出所涉及的领域。