Acquisition of Instrumentation for Non-Contact Multi-Scale Material Response Measurement

购置非接触式多尺度材料响应测量仪器

• 批准号: 0079589
• 负责人: David Frost
• 金额: $ 30.18万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-07-01 至 2003-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0079589&HistoricalAwards=false
• 关键词: Acquisition; Instrumentation; Non; Contact; Multi

This project involves the acquisition of non-contact equipment that forms the foundation of a unique state-of-the-art laboratory for microscale and mesoscale characterization of traditional (e.g., concrete, steel, soils) and innovative (e.g., fiber reinforced polymers, shape memory alloys, geosynthetics) civil engineering materials under combinations of mechanical loading and environmental exposure. The requested equipment combined with the current resources will allow the development of a facility which will be an integral part of an educational/research initiative in progress in the School of Civil and Environmental Engineering at Georgia Tech. Development of this facility, through the acquisition of the proposed equipment, will stimulate a variety of research, educational, and institutional interactions, including:(1) Development of laser and infrared measurement techniques for in situ, non-contract characterization of material and structural response.(2) Provision of equipment for the characterization of materials at the micro and meso scales while subjected to various loading and environment conditions.(3) Integration of equipment and research results into new and existing courses at the undergraduate and graduate levels to generate and further develop expertise in the non-contact evaluation of materials and structures.(4) Stimulation of interactions with local and national industry and government agencies to monitor, assess, and improve performance of materials and existing structures by novel applications of the equipment for in situ, non-contract evaluation.This project is supporting the acquisition of complementary systems for infrared thermography, photoelasticity, laser extensometery, and materials characterization using scanning white light interferometry and laser scanning confocal microscopy. These systems will be used in tandem to measure material response (e.g., deformation and damage accumulation) to loading and/or environment. It is considered that concurrent integrated research at different scales will generate new scientific and engineering findings that are expected to have national and international significance.

该项目涉及购买非接触式设备，为在机械载荷和环境暴露的组合下对传统土木工程材料(例如混凝土、钢、土壤)和创新土木工程材料(例如纤维增强聚合物、形状记忆合金、土工合成材料)进行微尺度和中尺度表征的独特最先进实验室奠定了基础。所需设备与现有资源相结合，将有助于开发一个设施，该设施将成为佐治亚理工学院土木和环境工程学院正在进行的教育/研究举措的组成部分。通过购买拟议的设备，开发这一设施将促进各种研究、教育和机构互动，包括：(1)开发激光和红外线测量技术，用于材料和结构响应的原位、非合同表征。(2)提供设备，用于在各种载荷和环境条件下表征材料。(3)将设备和研究成果整合到本科生和研究生的新课程和现有课程中，以产生和进一步发展材料和结构的非接触式评估方面的专门知识。(4)促进与地方和国家行业和政府机构的互动，以进行监测，通过现场非合同评估设备的新应用，评估和改进材料和现有结构的性能。该项目支持购买用于红外热像仪、光弹性、激光延伸仪和使用扫描白光干涉法和激光扫描共聚焦显微镜的材料表征的补充系统。这些系统将被串联用于测量材料对载荷和/或环境的响应(例如，变形和损伤累积)。人们认为，不同规模的同时进行的综合研究将产生新的科学和工程成果，预计这些成果将具有国家和国际意义。