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Nondestructive evaluation of composite rods using ultrasonic wave propagation

Author(s)
Pharr, Vanea R. (Vanea Ryann)
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Massachusetts Institute of Technology. Department of Mechanical Engineering.
Advisor
James H. Williams.
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M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582
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Abstract
Nondestructive Evaluation (NDE) is a branch of applied science that is concerned with assessing the properties and serviceability of materials and structures without causing collateral damage or depreciation. This study presents a detailed analysis of advanced composite rods (comprised of two or more distinct axial sections of different materials) using theoretical ultrasonic NDE. In anticipation of the high elastic moduli of the rods (relative to many metals) along their longitudinal axes, a one-dimensional wave propagation analysis will be conducted. By analyzing the propagation of ultrasonic waves in nondispersive media and the corresponding reflections and transmissions at structural interfaces, assessments of interfacial debonding will be explored and the presence of anomalous materials can be demonstrated. The resulting graphical presentations will be compiled and should provide the basis for material characterizations and assessments of structural integrity throughout the rods.
Description
Thesis: Nav. E., Massachusetts Institute of Technology, Department of Mechanical Engineering, June 2015.
 
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, June 2015.
 
Cataloged from PDF version of thesis. "June 2015."
 
Includes bibliographical references (page 135).
 
Date issued
2015
URI
http://hdl.handle.net/1721.1/100111
Department
Massachusetts Institute of Technology. Department of Mechanical Engineering.
Publisher
Massachusetts Institute of Technology
Keywords
Mechanical Engineering.

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  • Mechanical Engineering - Engineer's degree
  • Mechanical Engineering - Engineer's degree
  • Mechanical Engineering - Master's degree
  • Mechanical Engineering - Master's degree

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