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Effect of conductivity between fasteners and aluminum skin on eddy current specimens

Conference ·
OSTI ID:460783
 [1];  [2]
  1. Sandia National Labs., Albuquerque, NM (United States)
  2. Boeing Co., Seattle, WA (United States). Commercial Airplane Group
The Federal Aviation Administration Airworthiness Assurance Nondestructive Inspection Validation Center (FAA-AANC) and Boeing Commercial Airplane Group are currently developing a study pertaining to the detection of cracks in multi-layered aluminum sheets. The specimen panels model pertinent aspects of the lap splice joints for Boeing 737 aircraft, Line Numbers 292 - 2565. Upon initial characterization of the specimen panels, it became clear that signals produced from a sliding probe at fastener sites were not representative of an in-service lap splice, and therefore, could not be used in a probability of detection experiment. This paper discusses specimen characterization and steps taken to make the specimens useful for nondestructive technology assessment.
Research Organization:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC04-94AL85000
OSTI ID:
460783
Report Number(s):
SAND--97-0379C; CONF-970311--1; ON: DE97004208
Country of Publication:
United States
Language:
English