The Transferability of Brittle Fracture Toughness Characteristics.

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Transferability of Brittle Fracture Toughness Characteristics.

Popis výsledku v původním jazyce

In this paper, the use of the Weibull stress as a measure of the failure probability of cracked body is tested. The Weibull stress model for cleavage fracture of cast steel requires calibration of two micromechanics parameters. Weibull stress seems to bea parameter for prediction of cleavage failure of cracked bodies and the study is focused on the assessment of the effects of constraint loss on cleavage fracture toughness (Jc). To quantify the effects of constraint variation on the cleavage fracture toughness the form of the toughness-scaling model based on the Weibull stress is investigated. Local material parameters have been calculated arising from Beremin approach and calibration is based on the Gao and Ruggieri approach. Method is based on weakest link assumption and incremental fracture probability, which depends not only on the maximum principal stress, but also on the equivalent plastic strain. Accepting this approach to the analysis of local criteria for cleavage fracture th

Název v anglickém jazyce

The Transferability of Brittle Fracture Toughness Characteristics.

Popis výsledku anglicky

In this paper, the use of the Weibull stress as a measure of the failure probability of cracked body is tested. The Weibull stress model for cleavage fracture of cast steel requires calibration of two micromechanics parameters. Weibull stress seems to bea parameter for prediction of cleavage failure of cracked bodies and the study is focused on the assessment of the effects of constraint loss on cleavage fracture toughness (Jc). To quantify the effects of constraint variation on the cleavage fracture toughness the form of the toughness-scaling model based on the Weibull stress is investigated. Local material parameters have been calculated arising from Beremin approach and calibration is based on the Gao and Ruggieri approach. Method is based on weakest link assumption and incremental fracture probability, which depends not only on the maximum principal stress, but also on the equivalent plastic strain. Accepting this approach to the analysis of local criteria for cleavage fracture th

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

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2001

Kód důvěrnosti údajů

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

Název statě ve sborníku

Structural Mechanics in Reactor Technology - SMiRT 16.

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

Center for Nuclear Power Plant Structures, Equipment and Piping

Místo vydání

North Carolina State University

Místo konání akce

Washinghton DC [US]

Datum konání akce

12. 8. 2001

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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