Čanžar, Predrag and Tonković, Zdenko and Kodvanj, Janoš (2012) Influence of graphite morphology on the fatigue behaviour of nodular cast iron. = Influence of graphite morphology on the fatigue behaviour of nodular cast iron. In: 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012, 26 - 31.8.2012., Kazan; Russian Federation.
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Influence of graphite morphology on the fatigue behaviour of nodular cast iron.pdf - Accepted Version Jezik dokumenta:English Download (899kB) | Preview |
Abstract
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 EN-GJS-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.
| Item Type: | Conference or Workshop Item (Paper) |
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| Keywords (Croatian): | ABAQUS; Algorithms; Crack propagation; Cracks; Durability; Experiments; Fatigue of materials; Finite element method; Fracture; Microstructure; Optical systems; Tensile testing; Computational procedures; Cylindrical specimens; Fatigue crack initiation; Finite element programs; Fracture toughness tests; Graphite morphology; Monotonic tensile tests; Numerical investigations; Nodular iron |
| Subjects: | TECHNICAL SCIENCE |
| Divisions: | 200 Department of Engineering Mechanics > 210 Chair of Mechanics and Strength of Materials 200 Department of Engineering Mechanics > 220 Chair of Experimental Mechanics |
| Indexed in Web of Science: | No |
| Indexed in Current Contents: | No |
| Citations SCOPUS: | 0 (05.04.2016.) |
| Date Deposited: | 24 Apr 2015 11:46 |
| Last Modified: | 05 Apr 2016 14:34 |
| URI: | http://repozitorij.fsb.hr/id/eprint/3986 |
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