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U.S.-Austria Cooperative Research: Fracture Mechanics Case Studies of Concrete Dams

美国-奥地利合作研究：混凝土坝断裂力学案例研究

基本信息

批准号：
8814457
负责人：
Anthony Ingraffea
金额：
$ 0.81万
依托单位：
Cornell University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1989
资助国家：
美国
起止时间：
1989-02-15 至 1992-01-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=8814457&HistoricalAwards=false
关键词：
U.S.Austria Cooperative Research Fracture

项目摘要

This award supports Dr. Anthony R. Ingraffea of Cornell University in a research collaboration with Dr. Hans P. Rossmanith of the Institute of Mechanics of the Technical University of Vienna. The objectives of their cooperative research are to further the understanding of the process of cracking in large concrete dams, to create a simulation capability to diagnose the cause of cracking and evaluate repair procedures, and to incorporate the resulting new knowledge and experience into improved design procedures for new dam construction. Austria is among the world leaders in the construction of concrete dams. Case studies of a number of Austrian and U.S. dams currently under repair or construction will be performed with the cooperation of the owners or operators of the dams. Simulations will be based on advanced structural mechanics (including fracture mechanics, damage analysis, and failure analysis), numerical modelling methods (including finite and boundary elements modelling), and state-of-the-art interactive computer graphics. Special emphasis will be given to the problems of crack avoidance and control by design, and technically sound and cost-effective repair of cracked dams. Cracking in concrete dams is a problem of considerable importance. The results obtained from these case studies should guide and support designers, builders, operators, and repair personnel of large concrete dams. The cooperative nature of the project will hasten the development of simulation capability, broaden the data and knowledge bases on both sides, engender better cooperation from owners and operators of the dams, and transfer practical failure analysis expertise to the U.S. and 3-D simulation expertise to Austria.

该奖项支持康奈尔大学的 Anthony R. Ingraffea 博士与维也纳技术大学力学研究所的 Hans P. Rossmanith 博士进行研究合作。他们合作研究的目标是进一步了解大型混凝土大坝的开裂过程，创建模拟能力来诊断开裂原因并评估修复程序，并将由此产生的新知识和经验纳入新大坝建设的改进设计程序中。奥地利在混凝土水坝建设方面处于世界领先地位。目前正在维修或建设的一些奥地利和美国水坝的案例研究将在水坝所有者或运营商的合作下进行。模拟将基于先进的结构力学（包括断裂力学、损伤分析和失效分析）、数值建模方法（包括有限元和边界元建模）以及最先进的交互式计算机图形学。将特别强调通过设计避免和控制裂缝以及对裂缝大坝进行技术上合理且具有成本效益的修复问题。混凝土坝的裂缝是一个相当重要的问题。从这些案例研究中获得的结果应该为大型混凝土坝的设计者、建造者、运营者和维修人员提供指导和支持。该项目的合作性质将加速模拟能力的发展，扩大双方的数据和知识库，促进大坝业主和运营商之间更好的合作，并将实际故障分析专业知识转移到美国，将3D模拟专业知识转移到奥地利。