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Structural Engineering and Mechanics Volume 44, Number 5, December10 2012 , pages 601-609 DOI: https://doi.org/10.12989/sem.2012.44.5.601 |
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Crack driving force prediction based on finite element analysis using standard models |
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Josip Brnic, Goran Vukelic and Goran Turkalj
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| Abstract | ||
| Effect of different crack sizes on fracture criterion of some engineering materials was investigated in this work. Using finite element (FE) method coupled with a newly developed algorithm, Jintegral values for different crack sizes were obtained for single-edge notched bend (SENB) and compact type (CT) specimen. Specimens with initial a/W ratio from 0.25 to 0.75 varying in crack size in steps of 0.125 were investigated. Several different materials, like 20MnMoNi55, 42CrMo4 and 50CrMo4, usually used in engineering structure, were investigated. For one of mentioned materials, numerical results were compared with experimental and their compatibility is visible. | ||
| Key Words | ||
| crack driving force; J-integral; finite element method; engineering material | ||
| Address | ||
| Josip Brnic, Goran Vukelic and Goran Turkalj: Department of Engineering Mechanics, Faculty of Engineering, University of Rijeka, Vukovarska 58, 51000 Rijeka, Croatia | ||