Ultrasonic Assessment of Damage in Concrete Materials

混凝土材料损伤的超声波评估

• 批准号: 9634923
• 负责人: Kaspar Willam
• 金额: $ 18.99万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-01-01 至 2000-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9634923&HistoricalAwards=false
• 关键词: Ultrasonic; Assessment; Damage; Concrete; Materials

9634923 William This project is to assess the deterioration of concrete properties with the aid of ultrasonic wave transmission techniques. To this end concrete specimens will be subjected to mechanical load-unload-reload histories in order to initiate stress-induced deterioration processes. The main objective will be to determine whether ultrasonic measurements lead to quantitative damage information on concrete materials. The project includes theoretical, experimental and computational research and development along the following directions: (a) Ultrasonic Wave Transmission Studies in Concrete Specimens (b) Characterization of Damage (c) Separation of Elastic Degradation and Inelasticity The project will clarify the predictive capabilities of ultrasonic damage assessment in concrete materials. ***

9634923 WILLIAM这个项目旨在评估借助超声波传输技术的混凝土特性的恶化。 为此，将要进行机械载荷 - 额定加载历史，以启动应力诱导的劣化过程。 主要目的是确定超声测量是否导致有关混凝土材料的定量损害信息。 该项目包括沿以下方向的理论，实验和计算研究和发展：（a）混凝土样本中的超声波传输研究（b）损伤的表征（c）弹性降解和非弹性的分离该项目将阐明混凝土材料中超声损害评估的预测能力。 ***