Research of Detectivity for Ultrasonic Infrared Thermography NDT in Composite Materials

摘要：

In this paper, the ultrasonic infrared thermography (UIT) technique was applied to detect the composites damage. The frictional heating and thermal conductivity at the location of crack of the composites und.er ultrasonic excitation was simulated by finite element method (FEM). The excitation parameters including time, amplitude and frequency were studied. The composite involving delamination was detected by the ultrasonic generator. The results show that the UIT can identify the contacting interface-type damages at the surface or subsurface of composites rapidly, for example, delamination, fatigue crack et al.The excitation time, amplitude and frequency are impotent detection parameters. It can be seen accurately and intuitively of location of the damage, and there is no uniform heating problems from the experiment. Suitable coupling material can improve testing quality and eliminate standing wave effectively.

关键词： composites ultrasonic infrared thermography NDT damage detection

作者: SONG Yuanjia ZHANG Wei WANG Dongdong JIN Guofeng

作者单位: 203 office, Xian Research Inst. of Hi -Tech Hongqing Town, Xian P. R. China, 710025

会议类型: 国际会议

会议名称: 2011 International Conference on Machanical Engineering,Materials and Energy(2011年机械工程、材料与能源国际会议 ICMEME 2011)

会议地点: 大连

会议语种:英文

页码: 914-918

在线出版日期: 2011-10-19（万方平台首次上网日期，不代表论文的发表时间）