Inspection of Adhesively Bonded Joints Using Ultrasonic Guided Waves
Adhesives are used to join some critical structural parts of aircraft, for example, the wing panel. The inspection of such joints, to detect degradation in the adhesive and the bond line is critical to ensure the operational safety of aircraft. Ultrasonic guided waves provide an effective tool for non-destructive inspection. Guided waves have a multi-modal nature which permits stress wave energy to be directed to any point in the structure and over a long distance. A theoretical study for understanding the ultrasonic guided wave propagation characteristics through an adhesively bonded lap joint can help us in the identification of physical features to guide inspection. With the use of a hybrid analytical method and a numerical approach, guided wave reflection and transmission through an adhesively bonded lap joint with interfacial and cohesive weakness was studied. The analytical method helps select a suitable guided wave mode and the numerical method provides a benchmark/visualization with which the experimental results can be compared.
Adhesive bond ultrasonic guided wave guided wave reflection and transmission joints
Padma Kumar PUTHILLATH Fei YAN Haraprasad KANNAJOSYULA Cliff J. LISSENDEN Joseph L. ROSE Chunguang XU
Engineering Science and Mechanics Department, Pennsylvania State University, University Park, PA-168 Engineering Science and Mechanics Department, Pennsylvania State University, University Park, PA-168 School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, Chi
国际会议
第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)
上海
英文
1498-1503
2008-10-25（万方平台首次上网日期，不代表论文的发表时间）