Multiaxial elastoplastic cyclic loading of austenitic 316L steel

0480205 - ÚFM 2018 RIV IT eng J - Článek v odborném periodiku
Mazánová, Veronika - Polák, Jaroslav - Škorík, Viktor - Kruml, Tomáš
Multiaxial elastoplastic cyclic loading of austenitic 316L steel.
Frattura ed Integrita Strutturale. Roč. 11, č. 40 (2017), s. 162-169. ISSN 1971-8993
Grant CEP: GA ČR(CZ) GA13-23652S; GA MŠMT LM2015069; GA MŠMT(CZ) LQ1601; GA ČR GA15-08826S
Institucionální podpora: RVO:68081723
Klíčová slova: 316L steel * Crack initiation * Cyclic stress-strain curve * Multiaxial cyclic loading
Obor OECD: Audio engineering, reliability analysis

Cyclic stress-strain response and fatigue damage character has been investigated in austenitic stainless steel 316L. Hollow cylindrical specimens have been cyclically deformed in combined tension-compression and torsion under constant strain rate condition and different constant strain and shear strain amplitudes. In-phase and 90° out-of-phase cyclic straining was applied and the stress response has been monitored. Cyclic hardening/softening curves were assessed in both channels. Cyclic softening followed for higher strain amplitudes by long-term cyclic hardening was observed. Cyclic stress-strain curves were determined. Study of the surface damage in fractured specimens revealed the types and directions of principal cracks and the sources of fatigue crack initiation in slip bands. © 2017, Gruppo Italiano Frattura. All rights reserved.
Trvalý link: http://hdl.handle.net/11104/0276373