23rd Congress of International Council of the Aeronautical Sciences, 8-13 September, 2002, Toronto, Canada
Paper ICAS 2002-3.4.5

SERVICE LIFE OF A TITANIUM MAIN WING BOX FOR SECOND GENERATION SUPERSONIC COMMERCIAL TRANSPORT

A. D. Dementyev, T. S. Rodchenko, K. S. Scherban
TsAGI, Russian Federation

Keywords: second generation supersonic transport, welded structure, service life and fatigue, crack growth duration, critical crack length.

On the basis of summarizing the experience of developing supersonic aircraft the lifetime properties of SST-2 lower wing panels have been analyzed when the titanium alloy welded wing box was used. The analysis of the critical sizes of cracks, crack growth duration from the visually detected size up to the critical size is carried out.

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