Leak-before-break analysis of a pressurizer - estimation of the elastic-plastic semi-elliptical through-wall crack opening displacement

Gubeljak, Nenad; Predan, Jožef; Kozak, Dražan

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Naslov:	Leak-before-break analysis of a pressurizer - estimation of the elastic-plastic semi-elliptical through-wall crack opening displacement
Avtorji:	ID Gubeljak, Nenad (Avtor) ID Predan, Jožef (Avtor) ID Kozak, Dražan (Avtor)
Datoteke:	http://divk.inovacionicentar.rs/ivk/ivk12/ivk1201-2.html
Jezik:	Angleški jezik
Vrsta gradiva:	Delo ni kategorizirano
Tipologija:	1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:	FS - Fakulteta za strojništvo
Opis:	The work presents methods to estimate elastic-plastic semi-elliptical through-wall Crack Opening Displacement (COD) for the Leak-Before-Break analysis of a pressurizer. Usually proposed methods are based on GE/EPRI approach or on the reference stress and J-integral as stress intensity factor (SIF) along the crack tip. J-integral calculation provides the value of SIF ateach node of mesh along the crack tip, where values vary from the surface to middle section of material in respect to material properties. COD value is calculated through thickness along the centre of crack. The COD values are less sensitive to distance from crack tip and material properties. The engineering approach for the calculation of J-integral by using COD values and material full stress-strain data is given. COD values are proportional to surface length of semi-elliptical through wall crack of the pressurizer
Ključne besede:	mehanika loma, semi-elliptical through-wall crack, crack opening displacement, GE/EPRI approach, leak-before-break analysis, reference stress approach
Leto izida:	2012
Št. strani:	Str. 30-34
PID:	20.500.12556/DKUM-50140
UDK:	620.1/.2:539.42
COBISS.SI-ID:	16182806
ISSN pri članku:	1451-3749
NUK URN:	URN:SI:UM:DK:TB5KA7KB
Datum objave v DKUM:	10.07.2015
Število ogledov:	1861
Število prenosov:	47
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Področja:	Ostalo
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Gradivo je del zbornika

Naslov:	Eleventh Meeting "New trends in fatigue and fracture", NT2F11, Polignano a Mare, Italy, 3-6 July, 2011
COBISS.SI-ID:	16183062

Gradivo je del revije

Naslov:	Integritet i vek konstrukcija
Skrajšan naslov:	Integr. vek konstr.
Založnik:	Društvo za integritet i vek konstrukcija.
ISSN:	1451-3749
COBISS.SI-ID:	10931478

Sekundarni jezik

Jezik:	Angleški jezik
Naslov:	Primena koncepta procurivanja pre loma na posudu pod pritiskom - procena elasto-plastičnog otvaranja polu-eliptične prolazne prsline

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