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Transferability of fracture mechanical data from sub-sized three point bend specimens
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SYSNO ASEP 0370106 Document Type O - Others R&D Document Type Others Title Transferability of fracture mechanical data from sub-sized three point bend specimens Author(s) Stratil, Luděk (UFM-A) ORCID
Čermák, Martin (UFM-A)
Hadraba, Hynek (UFM-A) RID, ORCID
Dlouhý, Ivo (UFM-A) RID, ORCIDNumber of authors 4 Year of issue 2011 Number of pages 1 s. Action International Workshop on Computational Mechanics of Materials Event date 22.08.2011-24.08.2011 VEvent location Limerick Country IE - Ireland Event type WRD Language eng - English Country IE - Ireland Keywords three-point-bend specimen ; stress-strain state ; Eurofer´97 ; J-integral Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GAP107/10/0361 GA ČR - Czech Science Foundation (CSF) GD106/09/H035 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation The contribution deals with FEA of stress state in sub-sized pre-cracked three-point bend specimen with dimensions 3×4×27 mm3. In the experimental part the true stress-true strain curve was obtained from tensile test from Eurofer´97 steel. Next, the static three point bend tests with different crack lengths were carried out on plain and side-grooved specimens. The tests were simulated using ABAQUS 6.10. For comparison, models of pre-cracked standard and Charpy specimen were also created. The stress level below the crack tip for both KLST and Charpy specimen decrease more extensively than for standard specimen indicating the constraint loss. The decrease of the stress level and thus constraint loss is the highest just for the smallest specimen. The different crack lengths have no influence on the stress level at the crack tip. The side grooving enabled to maintain the stress level at the crack tip along the thickness but does not have effect on the maximum value of the stress. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2012
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