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Transferability of Fracture Mechanical Characteristics
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SYSNO ASEP 0177825 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Micromechanical Aspects of Constraint Effect at Brittle Fracture Initiation Author(s) Chlup, Zdeněk (UFM-A) RID, ORCID
Dlouhý, Ivo (UFM-A) RID, ORCIDSource Title Transferability of Fracture Mechanical Characteristics / Dlouhý I.. - Dordrecht : Kluwer Academic Publishers, 2002 Pages s. 65-78 Number of pages 14 s. Language eng - English Country NL - Netherlands Keywords fracture toughness ; cast ferritic steel ; crack tipconstraint Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects ME 303 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA106/02/0745 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z2041904 - UFM-A Annotation Applying the two-parameter fracture mechanics approach to the analysis of failure initiation condition in three-point bend specimens with shallow and deep cracks were tested at various temperatures. Low carbon manganese cast steel was used for the analysis. The effect of crack length on the fracture toughness-temperature diagram has been analysed. Strong dependence of measured fracture toughness on crack tip constraint was observed, no evident differences in fracture morphology were identified except for quantitative ones. The effect of crack tip constraint on brittle fracture characteristics has been quantified by means of the Q-parameter. The role of cleavage fracture stress in brittle fracture initiation under the influence of crack tip constraint has been analysed. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2003
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