Characterization of static- and fatigue-loaded carbon composites by X-ray CT
The development and improvement of advanced materials is strictly connected to the understanding of the properties and behavior of such materials as a function of both their macro and micro-structures. The application of X-ray computed tomography (CT) to these materials allows for a better understanding of the materials properties and behavior on either macro or micro-structure scales. The authors applied CT to study a set of aerospace grade carbon fiber/thermoplastic matrix composites. Samples of APC-2 (PEEK/AS4) were subjected to either static or high-stress fatigue loading in tension. Both notched (central circular hole) and unnotched specimens were examined. They are investigating a high-temperature thermoplastic polyimide composite sample by acquiring CT data sets before, during (at set intervals), and after full-reversal (tension-compression), low-stress fatigue loading at the upper use temperature. The CT scanner employed and the results obtained in the analysis of 3D CT data sets to study the defects and other features within the different composites are presented in this report.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 119995
- Report Number(s):
- UCRL-JC-121680; CONF-950785-3; ON: DE96001732; TRN: AHC29527%%138
- Resource Relation:
- Conference: 22. annual review of progress in quantitative nondestructive evaluation conference, Seattle, WA (United States), 30 Jul - 4 Aug 1995; Other Information: PBD: 31 Aug 1995
- Country of Publication:
- United States
- Language:
- English
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