@inproceedings{fad26851224047f5819f4df17035f32d,
title = "Anti-symmetric flexural modes propagating along a wedge tip with a defect",
abstract = "Antisymmetric flexural (ASF) modes are guided acoustic waves propagating along a wedge-shaped wave guide with their energy tightly confined near the tip. Motivated by the potential application of employing ASF modes in inspecting defects in machine tool blades with sharp edges, this study is focused in investigating the behaviors of ASF modes propagating along the wedge tips with defect. More specifically, we investigate the quantitative behaviors of ASF reflection and transmission while the ASF modes interact with a defect along a wedge tip. This investigation includes numerical simulations with finite element analysis and experimental measurements with a laser ultrasound technique. Defect parameters including depth and width are discussed regarding to their influences on the reflection coefficient (RC) and transmission coefficient (TC). The RC is found to increase as the ratio between the defect depth and the ASF wavelength increases, while the TC decreases.",
keywords = "ASF mode, Defect, Finite element analysis, Laser ultrasound technique, Wedge wave",
author = "Wu, {Tai Chieh} and Chen, {Yu Hong} and Yang, {Che Hua}",
year = "2012",
doi = "10.1117/12.917423",
language = "英语",
isbn = "9780819490049",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",
note = "Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012 ; Conference date: 12-03-2012 Through 15-03-2012",
}