Number of the records: 1
Description of short fatigue crack propagation under low cycle fatigue regime
- 1.
SYSNO ASEP 0465128 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Description of short fatigue crack propagation under low cycle fatigue regime Author(s) Hutař, Pavel (UFM-A) RID, ORCID
Poduška, Jan (UFM-A) ORCID
Chlupová, Alice (UFM-A) RID, ORCID
Šmíd, Miroslav (UFM-A) RID, ORCID
Kruml, Tomáš (UFM-A) RID, ORCID
Náhlík, Luboš (UFM-A) RID, ORCIDNumber of authors 6 Source Title 21st European Conference on Fracture. - Amsterdam : Elsevier, 2016 - ISSN 2452-3216 Pages s. 3010-3017 Number of pages 8 s. Publication form Online - E Action ECF21 - European Conference on Fracture /21./ Event date 20.06.2016-24.06.2016 VEvent location Catania Country IT - Italy Event type WRD Language eng - English Country NL - Netherlands Keywords short fatigue cracks ; low cycle fatigue ; plastic part of J-integral ; numerical modelling Subject RIV JL - Materials Fatigue, Friction Mechanics OECD category Audio engineering, reliability analysis R&D Projects GA15-08826S GA ČR - Czech Science Foundation (CSF) LM2015069 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFM-A - RVO:68081723 UT WOS 000387976803012 EID SCOPUS 85020386386 DOI 10.1016/j.prostr.2016.06.377 Annotation Measurement of the short fatigue crack propagation can come across a lot of difficulties from the experimental point of view and interpretation of the results is also sometimes controversial. For simplicity, usual description of the short cracks is based on linear elastic fracture mechanics (using the concept of stress intensity factor). In this case, significant differences between short cracks and long cracks are usually presented. Most of the discrepancies are simply given by non-validity of the linear elastic fracture mechanics approach. In our case of physically short fatigue cracks the level of applied stress is close to cyclic yield stress of the material and, due to large amount of plasticity, conditions of linear elastic fracture mechanics are not satisfied. As a consequence, non-linear elastic plastic fracture mechanics is used for description of the short crack behavior in this article. Concept based on plastic part of J-integral is proposed for the description of the short crack behavior and data obtained for different strain amplitudes are compared. This concept is validated on experimental data obtained on steel 316L. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2017
Number of the records: 1