The acousto-ultrasonic approach:several industry applications

摘要：

The Acousto-Ultrasonic(AU)approach was originated at NASA Lewis Research Center(today,the NASA Glenn Research Center)and it was developed mainly to evaluate/characterize distributed damage in advanced composites.In this paper,the nature and the underlying rational of the acoustoultrasonic approach are explained and its principles are explored.The robustness and other advantages of the acousto-ultrasonic approach in quality control applications are discussed.A literature review is presented and,as an example,the use of acousto-ultrasonics to assess levels of porosity in advanced polymer composites is discussed in detail.Because many factors involved in the technique are not yet fully understood AU is currently undergoing experimental investigations to establish theoretical grounds for the purely empirical findings and practical applications now abundant in the literature.

关键词： acousto-ultrasonics quality control adhesion composites ultrasonics guided waves

作者: H. Reis A. Vary

作者单位: University of Illinois at Urbana-Champaign,Urbana,Illinois,USA

会议类型: 国际会议

会议名称: The World Forum on Smart Materials and Smart Structures Technology(SMSST07)(2007年世界智能材料与智能结构技术论坛)

会议地点: 重庆·南京

会议语种:英文

在线出版日期: 2007-05-01（万方平台首次上网日期，不代表论文的发表时间）