作者：Sara Bkack;
作者單位：
刊名：HIGH-PERFORMANCE Composites
ISSN：1081-9223
出版年：2008-01-05
卷：16
期：5
起頁：54
止頁：61
分類號：TQ175
語種：英文
關鍵詞：
內容簡介Structural engineers have long imagined the day when materials used in an aircraft, a wind turbine blade or a bridge could sense if they had been strained to the point of damage, reducing their load-carrying capacity, and report that information in real time before the structure's safety is compromised. For many years, such a scenario was more the stuff of science fiction than fact, but today, structural health monitoring (SHM) systems that can perform these tasks are closer to reality. In IIPC's January 2007 issue (see "Learn More," p. 61), we discussed the importance of being able to inspect structures for signs of fatigue and damage, particularly in aircraft. In practice, however, today's composite components often feature innovative designs and multifaceted geometries that can make them difficult to inspect for deeply hidden flaws, says Dr. Dennis Roach, a Distinguished Member of the technical staff at Sandia National Laboratories (Albuquerque, N.M.), which operates and staffs the FAA Airworthiness Assurance Center and Non-Destructive Inspection (NDI) Validation Center.
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