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

该项目涉及非接触式设备的采购，这些设备构成了一个独特的最先进的实验室的基础，用于传统（例如，混凝土、钢、土壤）和创新（例如，纤维增强聚合物、形状记忆合金、土工合成材料）土木工程材料。 所要求的设备与目前的资源相结合，将允许开发一个设施，这将是一个教育/研究倡议的一个组成部分，在土木和环境工程学院在格鲁吉亚技术。 通过购买拟议的设备，该设施的发展将刺激各种研究，教育和机构的互动，包括：（1）开发激光和红外测量技术，用于原位，非合同表征材料和结构响应。(2)提供设备，用于在承受各种载荷和环境条件的情况下在微观和中观尺度上对材料进行表征。(3)将设备和研究成果整合到本科和研究生阶段的新课程和现有课程中，以生成并进一步发展材料和结构非接触评估的专业知识。(4)激励与地方和国家工业和政府机构的互动，通过现场非合同评估设备的新应用来监测、评估和改善材料和现有结构的性能。该项目支持购买红外热成像、光弹性、激光伸缩仪、以及使用扫描白色光干涉测量法和激光扫描共聚焦显微镜的材料表征。 这些系统将串联使用，以测量材料反应（例如，变形和损伤累积）对载荷和/或环境的影响。人们认为，在不同规模上同时进行的综合研究将产生新的科学和工程研究成果，预计将具有国家和国际意义。

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.