NDE Methodologies for Composite Flywheels Certification 2000-01-3655
Manufacturing readiness of composite rotors and certification of flywheels depend in part on the maturity of nondestructive evaluation (NDE) technology for process optimization and quality assurance, respectively. Capabilities and limitations of x-ray-computed tomography and radiography, as well as advanced ultrasonics were established on NDE ring and rotor standards with EDM notches and drilled holes. Also, intentionally seeded delamination, tow break, and insert of bagging material were introduced in hydroburst-rings to study the NDE detection capabilities of such anomalies and their effect on the damage tolerance and safe life margins of subscale rings and rotors. Examples of possible occurring flaws or anomalies in composite rings as detected by NDE and validated by destructive metallography are shown. The general NDE approach to ensure quality of composite rotors and to help in the certification of flywheels is briefly outlined.
Citation: Baaklini, G., Konno, K., Martin, R., and Thompson, R., "NDE Methodologies for Composite Flywheels Certification," SAE Technical Paper 2000-01-3655, 2000, https://doi.org/10.4271/2000-01-3655. Download Citation
Author(s):
George Y. Baaklini, Kevin E. Konno, Richard E. Martin, Richard Thompson
Affiliated:
NASA Glenn Research Center
Pages: 13
Event:
Power Systems Conference
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Proceedings of the SAE Power Systems Conference 2000-P-359
Related Topics:
Flywheels
Propellers and rotors
Optimization
Quality assurance
Composite materials
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