The growth of fatigue cracks at spot-welds during a full-scale test of an aircraft wing

Title

The growth of fatigue cracks at spot-welds during a full-scale test of an aircraft wing

 Author

McCaffrey, G.F.W.
Shaver, B.E.

Institution

National Research Council Canada, National Aeronautical Establishment

 Date

1983-08-08

 Abstract

A full scale fatigue test of a CS2F (Tracker) wing and fuselage has recently been completed in the Structures and Materials Laboratory of NAE. During the test some 65 cracks, each of whieh originated in the melted zone of a spot-weId, were discovered and their growth was monitored for the remainder of the test. The oldest of these were observed for 67,000 sim uIa ted flying hours. Cracks in one such group merged, and eventually led to the failure of the starboard outer wing. This report discusses the growth of the cracks, the skin stresses in the vicinity of the cracks and an analysis used to determine the probable starting time of the cracks from their observed growth data.

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 Publisher

National Research Council Canada

 Access restriction

Campus only

 Source

National Aeronautical Establishment, Laboratory Technical report LTR-ST-1467

 Part of collection

Aerospace Engineering Reports

 Document type

report

 Rights

(c) 1983 National Research Council Canada
Files
PDF ST-1467.pdf 3.55 MB
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