Carbon letters
- Volume 7 Issue 1
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- Pages.19-26
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- 2006
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- 1976-4251(pISSN)
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- 2233-4998(eISSN)
Fracture Toughness and Crack Growth Resistance of the Fine Grain Isotropic Graphite
- Kim, Dae-Jong (Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology) ;
- Oh, Seung-Jin (Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology) ;
- Jang, Chang-Heui (Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology) ;
- Kim, In-Sup (Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology) ;
- Chi, Se-Hwan (Korea Atomic Energy Research Institute)
- Received : 2006.02.14
- Accepted : 2006.03.10
- Published : 2006.03.30
Abstract
Three point bending tests of single edge notched beam (SENB) specimens were carried out to evaluate the fracture behavior of the fine-grain isotropic nuclear grade graphite, IG-11. To measure the crack initiation point and the subsequent crack growth, the direct current potential drop (DCPD) method and a traveling microscope were used. The effects of test variables like initial crack length, specimen thickness, notch type and loading rate on the measured fracture toughness,
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