Masters Theses

Keywords and Phrases

Heat transfer; Infrared thermography; Numerical modeling

Abstract

"Several inspection techniques have been developed over years. Recently, infrared thermography (IRT) technology has become a widely accepted as a nondestructive inspection (NDI) technique for different fields and various applications as well. Infrared thermography stands as one of the most an attractive and a successful NDI technique that has ability to detect the object's surface/subsurface defects remotely based on observing and measuring the surface's emitted infrared heat radiation by using an infrared camera. The finite element modeling FEM ANSYS was successfully used for the modelling of several IRT techniques; such as Pulsed Thermography (PT) and Lock-in Thermography (LT) that can be used to detect the in-plane defects which are parallel to its surface; besides a Laser Spot Thermography (LST) technique that can be used to detect the cracks which are perpendicular to its surface. Furthermore; this thesis describes how LST method can be extended to a new technique, Laser Digital Micromirror Thermography (LDMT), based on using a digital micromirror device (DMD) that has ability to generate multi-hot spots onto the specimen's surface being examined by using single laser source.

In one hand, this thesis aims to show investigations about infrared thermography technology as a non-destructive inspection (IRT-NDI) by using numerical modeling methods via ANSYS. On the other hand, this thesis presents FEM ANSYS as a powerful tool allows doing several inspections, analyses, and evaluations of thermography techniques tests based on numerical modeling simulations and comparing their results to the corresponding experiments in literature experiment tests to validate these simulations and show a reasonable agreement to use ANSYS as a thermography inspection tool for future study and researches"--Abstract, page iii.

Advisor(s)

Kinzel, Edward C.

Committee Member(s)

Homan, Kelly
Chandrashekhara, K.

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Mechanical Engineering

Sponsor(s)

The Higher Committee for Education Development in Iraq

Publisher

Missouri University of Science and Technology

Publication Date

Fall 2013

Pagination

xix, 175 pages

Note about bibliography

Includes bibliographic references (pages 149-161).

Rights

© 2013 11:52:58 PM Hayder Abdulnabi Thajeel, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Library of Congress Subject Headings

Heat -- Transmission -- Mathematical models
Thermography
Infrared imaging
ANSYS (Computer system)

Thesis Number

T 10598

Electronic OCLC #

902737043

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