Indian Journal of Science and Technology

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Surface Integrity Determination of Aluminum Plates Using Laser-generated Lamb Waves


Affiliations
1 Department of Physics, Christ Church College, Kanpur-208001, India
2 Indian Institute of Technology Kanpur Kanpur-208016, India
 

Laser based ultrasonics is an important method in non-destructive testing for material characterization and process control. This paper describes the generation and characterization of Lamb waves in a thin aluminum plate-using laser based ultrasonics. Nd: YAG laser is used for ultrasonic generation and He-Ne Laser Heterodyne Interferometer is used for detection. Laser generation of Lamb waves leads to simultaneous generation of various frequency component as well as multiple Lamb wave modes. The surface integrity of a thin aluminium plate is studied.

Keywords

Lamb Waves, Laser Generation, Surface Integrity
User

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  • Surface Integrity Determination of Aluminum Plates Using Laser-generated Lamb Waves

Abstract Views: 344  |  PDF Views: 103

Authors

T. Pramila
Department of Physics, Christ Church College, Kanpur-208001, India
Rashmi Shukla
Department of Physics, Christ Church College, Kanpur-208001, India
N. N. Kishore
Indian Institute of Technology Kanpur Kanpur-208016, India
V. Raghuram
Indian Institute of Technology Kanpur Kanpur-208016, India

Abstract


Laser based ultrasonics is an important method in non-destructive testing for material characterization and process control. This paper describes the generation and characterization of Lamb waves in a thin aluminum plate-using laser based ultrasonics. Nd: YAG laser is used for ultrasonic generation and He-Ne Laser Heterodyne Interferometer is used for detection. Laser generation of Lamb waves leads to simultaneous generation of various frequency component as well as multiple Lamb wave modes. The surface integrity of a thin aluminium plate is studied.

Keywords


Lamb Waves, Laser Generation, Surface Integrity

References





DOI: https://doi.org/10.17485/ijst%2F2010%2Fv3i3%2F29687