Naslov
Influence of Graphite Morphology on the Fatigue Behaviour of Nodular Cast Iron

Autori
Čanžar, Predrag ; Tonković, Zdenko ; Kodvanj, Janoš

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

Izvornik
Proceedings of the 19th European Conference on Fracture (ECF19), Kazan, Russia, 26 - 31 August, 2012. / - , 2012

Skup
19th European Conference on Fracture (ECF19), Kazan, Russia, 26 - 31 August, 2012.

Mjesto i datum
Kazan, Ruska Federacija, 26.08.2012. - 31.08.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
nodular cast iron; microstructure; fatigue; experiment; finite element method

Sažetak
Paper presents an experimental and numerical investigation of the cyclic deformation processes as well as low-cycle fatigue behaviour of the four different types of nodular cast iron ENGJS- 400-18-LT. The experimental part of this study consists of monotonic tensile tests, symmetric and unsymmetric, strain-controlled, cyclic tests, conducted on smooth cylindrical specimens, while the fatigue crack initiation and propagation, as well as fracture toughness tests are conducted on the compact tension and single edged notched specimens under various loading regimes. During the tests, monitoring of the crack length is performed by an optical system. Experimental results show that different material types have significantly different crack behaviour. Within the framework of numerical investigations an efficient algorithm for modelling of cyclic plasticity is examined. This algorithm is implemented into the finite element program ABAQUS and applied to the analysis of a crack growth near the notch. The accuracy of the computational procedure is tested by comparing the computed results with the real experimental data.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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