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Technical Assessment of the National Full Scale Aerodynamic Complex Fan Blades RepairThis report describes the principal activities of a technical review team formed to address National Full Scale Aerodynamic Complex (NFAC) blade repair problems. In particular, the problem of lack of good adhesive bonding of the composite overwrap to the Hyduliginum wood blade material was studied extensively. Description of action plans and technical elements of the plans are provided. Results of experiments designed to optimize the bonding process and bonding strengths obtained on a full scale blade using a two-step cure process with adhesive primers are presented. Consensus recommendations developed by the review team in conjunction with the NASA Ames Fan Blade Repair Project Team are provided along with lessons learned on this program. Implementation of recommendations resulted in achieving good adhesive bonds between the composite materials and wooden blades, thereby providing assurance that the repaired fan blades will meet or exceed operational life requirements.
Document ID
19980023494
Acquisition Source
Langley Research Center
Document Type
Technical Memorandum (TM)
Authors
Young, Clarence P., Jr. (Vigyan Research Associates, Inc. Hampton, VA United States)
Dixon, Peter G. (Advanced Technologies, Inc. Newport News, VA United States)
St.Clair, Terry L. (NASA Langley Research Center Hampton, VA United States)
Johns, William E. (Washington State Univ. Pullman, WA United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1998
Subject Category
Research And Support Facilities (Air)
Report/Patent Number
NASA/TM-1998-206932
NAS 1.15:206932
L-17701
Funding Number(s)
PROJECT: RTOP 282-10-01-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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