Istrazivanja i projektovanja za privreduJournal of Applied Engineering Science


ISSN: 1451-4117

E-ISSN: 1821-31977
Volume 8 article 184 pages: 181-188

Maksimovic Stevan
Military Technical Institute, Belgrade

Blazic Marija
Military Technical Institute, Belgrade

Maksimovic Mirko
Belgrade waterworks and sewerage, Belgrade

An attention in this paper is focused on developing computation procedures during design of flight structures with respects fatigue and fracture mechanics Here are developed analytic expressions for the stress intensity factor (SIF) in 3-D solid type structural components for crack growth analyses. Damages of structural components are modeled with semi-elliptic surface cracks. Structural components are under cyclic loads and load spectra. Results of presented analytic model of FIN are compared with finite element results. Good agreement between presented analytic and finite element results is obtained. Strength analysis with respect static fracture mechanics is illustrated on nose landing gear problem of light training aircraft.

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