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Fatigue Crack and Porosity Measurement in Composite Materials by Thermographic and Ultrasonic MethodsContents include the following: 1. Purpose. Detect thermo-mechanically induced intra-ply fatigue microcracking and manufactured porosity in unlined composite pressure vessels. 2. Defect descriptions. Porosity, microcracking. 3. Thermography. Overview of technique. Strengths and Weaknesses. Examples of its use for porosity detection. 4. Resonant ultrasound spectroscopy. Overview of technique. Strengths and Weaknesses. Examples of its use for microcracking detection. Conclusions.
Document ID
20040084006
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Walker, James L. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Russell, Samuel S. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Suits, Michael W. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Workman, Gary L. (Alabama Univ. Huntsville, AL, United States)
Date Acquired
September 7, 2013
Publication Date
November 1, 2003
Publication Information
Publication: 5th Conference on Aerospace Materials, Processes, and Environmental Technology
Subject Category
Composite Materials
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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