Author(s):
1. Stevan Maksimović, Vojnotehnički Institut Beograd, Serbia
2. Ivana Vasović, Institut Goša, Milana Rakića 35, Beograd, Serbia
3. Mirko Maksimović, Waterworks and Sewerage, Serbia
4. Mirjana Đurić, Military Tehnical Institute Belegrad, Serbia

Abstract:
ABSTRACT: Subject of this investigation is focused on developing computation procedure for residual life estimation of damaged aircraft structural components. For that purpose here will be considered computation procedures for residual life estimations of aircraft structural components under cyclic loads of constant amplitude and load spectrum. An special aspect of this investigation is based on application of Strain Energy Density (SED) in residual life estimation of structural components with initial cracks. Special singular finite elements are used to determine stress intensity factors (SIF). Verification of computation procedures for residual life estimations will be supported with corresponding experimental tests for determination low cyclic fatigue properties of materials and corresponding parameters of fracture mechanics including fatigue tests of representative aircraft structural components.

Key words:
Aircraft structures,Fracture mechanics,SIF,Load spectrum,Crack growth,Residual life estimations

Date of abstract submission:
15.01.2013.

Conference:
DEMI 2013

Applied paper from author