TOWARDS A PROCESS FOR THE ASSESMENT OF MIXED MODE I II FRACTURE TOUGHNESS PVP2018

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F18%3A10241787" target="_blank" >RIV/61989100:27690/18:10241787 - isvavai.cz</a>

Výsledek na webu

<a href="http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2711524" target="_blank" >http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2711524</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1115/PVP2018-84575" target="_blank" >10.1115/PVP2018-84575</a>

Jazyk výsledku

angličtina

Název v původním jazyce

TOWARDS A PROCESS FOR THE ASSESMENT OF MIXED MODE I II FRACTURE TOUGHNESS PVP2018

Popis výsledku v původním jazyce

In fracture mechanics, a flaw behavior in pressure vessels is assessed with respect to the material fracture toughness.Fracture toughness which most Fitness-for-Service (FFS) codes relies on, only considers mode-I crack opening. However, in presence of tilted flaws, like quasi-laminar hydrogen flakes, this mode-I toughness may be too severe, and a mixed mode I+II fracture toughness seems to be more appropriate. In order to address the assessment of the fracture toughness curve, mixed mode I+II tests were performed by the authors on ferritic steel samples by adjusting the standard mode I CT specimen geometry to a geometry subjected to mixed mode I+II. Then, XFEM simulations of the mixed mode tests were performed in order to calculate the J-integral along the crack front. Based on tests and calculations results, the paper explains how the authors work towards proposing a method to measure the material fracture toughness in case of flaws subjected to mixed mode (I+II) loading.

Název v anglickém jazyce

TOWARDS A PROCESS FOR THE ASSESMENT OF MIXED MODE I II FRACTURE TOUGHNESS PVP2018

Popis výsledku anglicky

In fracture mechanics, a flaw behavior in pressure vessels is assessed with respect to the material fracture toughness.Fracture toughness which most Fitness-for-Service (FFS) codes relies on, only considers mode-I crack opening. However, in presence of tilted flaws, like quasi-laminar hydrogen flakes, this mode-I toughness may be too severe, and a mixed mode I+II fracture toughness seems to be more appropriate. In order to address the assessment of the fracture toughness curve, mixed mode I+II tests were performed by the authors on ferritic steel samples by adjusting the standard mode I CT specimen geometry to a geometry subjected to mixed mode I+II. Then, XFEM simulations of the mixed mode tests were performed in order to calculate the J-integral along the crack front. Based on tests and calculations results, the paper explains how the authors work towards proposing a method to measure the material fracture toughness in case of flaws subjected to mixed mode (I+II) loading.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

ASME 2018 Pressure Vessels &amp; Piping Conference (PVP2018) : July 15-20, 2018, Prague, Czech Republic

ISSN

0277-027X

e-ISSN

—

Svazek periodika

2018

Číslo periodika v rámci svazku

2018-84575

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

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Kód UT WoS článku

000460990800043

EID výsledku v databázi Scopus

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