Date of Award

8-2010

Document Type

Thesis

Degree Name

Master of Science (MS)

Legacy Department

Mechanical Engineering

Committee Chair/Advisor

PAMIDI, SREE H

Committee Member

ATIF , Dr. MOHAMMAD OMAR

Committee Member

MEARS , Dr. LAINE

Committee Member

HUNG , Dr. STEVE

Abstract

The work focuses on Induction assisted Thermography as a non-contact and non-destructive method of Inspecting micro defects on sheet metals used for making automotive body panels. Induction heating as a source of excitation to elevate the temperatures of sheet metals for uniform heating and detect ability of the defect is the main objective of the study.
Experiments are done on sheet metal samples with defects using excitation techniques like Pulse and Electromagnetic Induction. The thermal images obtained from the infrared camera are used to quantitatively analyze the detect ability of defects on sheet metals. The limitations of using Pulse technique and advantages of using Electromagnetic Induction technique for these kinds of defects are discussed.
Spatial distribution of temperature for various experimental conditions is also discussed to optimize induction heating requirements.

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