Accession Number : ADA074730


Title :   Fastener Hole Quality. Volume 2


Descriptive Note : Final technical rept. Jun 1976-Oct 1978


Corporate Author : GENERAL DYNAMICS FORT WORTH TX FORT WORTH DIV


Personal Author(s) : Noronha, P. J. ; Henslee, S. P. ; Gordon, D. E. ; Wolanski, Z. R. ; Yee, B. G.


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA074730


Report Date : DEC 1978


Pagination or Media Count : 405


Abstract : This report describes the development of the EIFS (Equivalent Initial Flaw Size) concept as a potential design tool and the generation of EIFS data as a function of several manufacturing and design variables. Several factors or mechanisms that strongly affected the fatigue behavior of fastener holes have been identified and corrected to achieve a 100% improvement in fatigue life. some of these improvements are being implemented in the F-16 production program and the improved drilling will be implemented in the C5A-H Mod. Program.


Descriptors :   *HOLES(OPENINGS) , *FASTENINGS , CRACKS , FATIGUE TESTS(MECHANICS) , FRACTOGRAPHY


Subject Categories : COUPLERS, FASTENERS, AND JOINTS


Distribution Statement : APPROVED FOR PUBLIC RELEASE