Počet záznamů: 1

Subsized Specimens for Fracture Resistance Characterization Including Transferability Issues

SYSNO ASEP	0468064
Druh ASEP	O - Ostatní výsledky
Zařazení RIV	O - Ostatní
Název	Subsized Specimens for Fracture Resistance Characterization Including Transferability Issues
Tvůrce(i)	Dlouhý, Ivo (UFM-A)_{RID, ORCID} Stratil, Luděk (UFM-A)_ORCID Šiška, Filip (UFM-A)_{RID, ORCID}
Celkový počet autorů	3
Rok vydání	2016
Jazyk dok.	eng - angličtina
Země vyd.	JP - Japonsko
Klíč. slova	fracture toughness ; crack resistance curve ; transferability ; crack tip constraint ; subsized specimen
Vědní obor RIV	JL - Únava materiálu a lomová mechanika
CEP	GJ15-21292Y GA ČR - Grantová agentura ČR
Institucionální podpora	UFM-A - RVO:68081723
Anotace	The fracture mechnics parameters characterise the stress singularity in front of the crack tip. At the existence of a small plastic zone at the crack tip (Small Scale Yielding (SSY)) conditions the fracture mechnics parameter characterises the crak tip conditions. The single parameter (e.g. K, J or CTOD) can be applied as a geometry-independent fracture criterion. Any surpassing of the SSY conditions causing decrease of the level of the stressses in the vicinity of the crack tip. The single-parameter fracture mechanics then breaks down and fracture toughness depends on the size and geometry of the test specimen. Small Specimen Test Technique has been solved for two miniature specimen types. The test results are discusssed from the point of view of validity of fracture toughness characteristics. The quantification of the constraint at the crack tip using FEA, T-stress and Q-parameter is performed. Correcrion of fracture toughness values corresponding to the SSY conditions is given.
Pracoviště	Ústav fyziky materiálu
Kontakt	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Rok sběru	2017

Počet záznamů: 1