Stress state analysis of sub-sized pre-cracked three-point-bend specimen

0385663 - ÚFM 2013 RIV CZ eng J - Článek v odborném periodiku
Stratil, Luděk - Kozák, Vladislav - Hadraba, Hynek - Dlouhý, Ivo
Stress state analysis of sub-sized pre-cracked three-point-bend specimen.
Engineering Mechanics. Roč. 19, 2/3 (2012), s. 121-129. ISSN 1802-1484
Grant CEP: GA ČR GD106/09/H035; GA ČR(CZ) GAP107/10/0361
Institucionální podpora: RVO:68081723
Klíčová slova: KLST * three-point bending * side grooving * Eurofer97 * J-integral
Kód oboru RIV: JL - Únava materiálu a lomová mechanika

The contribution deals with finite element analysis of stress state in sub-sized pre-cracked three-point bend specimen (KLST). A studied material was Eurofer97 steel. The three-point-bend tests were carried out on pre-cracked plain and side-grooved specimens at ambient temperature. Performed tests were simulated using FEA software Abaqus 6.10. The stress state in KLST specimen was compared with the stress state of pre-cracked Charpy and 1T SENB. The analysis confirmed the stress state in KLST specimens at the crack tip does not correspond to the stress state of standard fracture toughness determination because loss of crack-tip and out-of-plane constraint.
Trvalý link: http://hdl.handle.net/11104/0215238