The prediction of size effect on J R curve for Eurofer97 steel by simplified mechanical model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F15%3A00450456" target="_blank" >RIV/68081723:_____/15:00450456 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1115/PVP2015-45703" target="_blank" >http://dx.doi.org/10.1115/PVP2015-45703</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1115/PVP2015-45703" target="_blank" >10.1115/PVP2015-45703</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The prediction of size effect on J R curve for Eurofer97 steel by simplified mechanical model

Popis výsledku v původním jazyce

The possibilities to derive fracture toughness from small specimens are naturally limited due to constraint requirements which are especially restrictive in toughness testing. The loss of constraint at the crack tip is more likely to occur as specimen size decreases. Application of miniature specimens in fracture toughness testing thus requires a suitable methodology or correction procedure to deal with phenomenon of the constraint loss. Schindler et al. have proposed a simplified mechanical model thatcan be used to scale up the key test characteristics from miniature specimen to the larger one. The model is applied to the miniature bending specimens to describe size effect on J R curve of the Eurofer97 steel. The examined steel exhibits quite high toughness values at upper shelf region of fracture toughness. As a result, experimentally determined J R curves of three different sizes of pre cracked bending specimens showed high values of J integral, which were significantly different e

Název v anglickém jazyce

The prediction of size effect on J R curve for Eurofer97 steel by simplified mechanical model

Popis výsledku anglicky

The possibilities to derive fracture toughness from small specimens are naturally limited due to constraint requirements which are especially restrictive in toughness testing. The loss of constraint at the crack tip is more likely to occur as specimen size decreases. Application of miniature specimens in fracture toughness testing thus requires a suitable methodology or correction procedure to deal with phenomenon of the constraint loss. Schindler et al. have proposed a simplified mechanical model thatcan be used to scale up the key test characteristics from miniature specimen to the larger one. The model is applied to the miniature bending specimens to describe size effect on J R curve of the Eurofer97 steel. The examined steel exhibits quite high toughness values at upper shelf region of fracture toughness. As a result, experimentally determined J R curves of three different sizes of pre cracked bending specimens showed high values of J integral, which were significantly different e

Druh

D - Stať ve sborníku

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

ASME 2015 Pressure Vessels and Piping Conference

ISBN

978-0-7918-5692-5

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

1-9

Název nakladatele

ASME

Místo vydání

Boston

Místo konání akce

Boston

Datum konání akce

19. 7. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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