Naslov
Propagation of Multiple Fatigue Cracks in Stiffened Panels

Autori
Božić, Željko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Integrity, Reliability and Failure / Meguid, S.A ; Silva Gomes, J.F. - Porto : Unidade de Mecanica Experimental e Novos Materiais,INEGI/FEUP, 1999, 274-275

Skup
Integrity, Reliability and Failure

Mjesto i datum
Porto, Portugal, 19.07.1999. - 22.07.1999

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
fatigue crack propagation; multiple cracks; fatigue tests

Sažetak
A simulation procedure for propagation of multiple collinear fatigue cracks was introduced. The crack propagation simulation procedure is based on numerical integration of the Paris’ equation, taking account of the interaction of several cracks, where Mode I stress intensity factors are calculated by a general purpose FEM program. The procedure was verified comparing simulation results with experimental fatigue tests on stiffened and un-stiffened specimens damaged either with a single crack or a multiple array of cracks. One could apply the procedure to other thin-walled structures such as ship or aircraft structures, providing the fracture mechanics parameters for the material are known and stress intensity factors can be calculated.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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