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Naslov:Fracture behaviour of thin sheet stainless steel
Avtorji:Gubeljak, Nenad (Avtor)
Jagarinec, Darko (Avtor)
Predan, Jožef (Avtor)
Landes, John (Avtor)
Datoteke:URL http://www.ttp.net/978-3-03785-463-1/13.html
 
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:FS - Fakulteta za strojništvo
Opis:The differences in fracture behavior between the compact tension C(T) and the middle tensile M(T) specimens make structure integrity assessment uncertain. Two different types of specimens C(T) and M(T) specimens made from stainless steel have been used for fracture toughness testing at the room temperature by the principles of the ASTM 1820-05 standard procedure. Stable crack initiation and crack propagation occurred for the C(T) specimens at lower values of crack driving force than for the M(T) specimens. Crack tip opening displacement-CTOD has been directly measured on the surface of specimens by using a stereo-optical grading method. The critical crack tip opening displacement at crack initiation CTODi has been measured as a plastic Stretch Zone Width (SZW) during a post test fractographic inspection. Comparison between the CTOD-R curves of both types of specimens shows some difference between the C(T) and the M(T) specimens, but a more significant difference appeared in the crack driving force, as consequence of different constraint (triaxiality) of the C(T) versus the M(T) specimens. Therefore, the result obtained by test on laboratory C(T) specimens cannot be directly used as fracture toughness material properties in a structure integrity assessment, except as a conservative lower bound estimate.
Ključne besede:stainless steel, compact tension specimen, middle tension specimen, CTOD-R curves
Leto izida:2012
Št. strani:str. 549-552
Številčenje:Vols. 525-526
UDK:539.3:620.1/.2
COBISS_ID:16231446 Povezava se odpre v novem oknu
DOI:10.4028/www.scientific.net/KEM.525-526.549 Povezava se odpre v novem oknu
ISSN pri članku:1013-9826
NUK URN:URN:SI:UM:DK:LNSLIQ4G
Število ogledov:458
Število prenosov:48
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Področja:Ostalo
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Gradivo je del zbornika

Naslov:Advances in fracture and damage mechanics XI
COBISS.SI-ID:16231190 Novo okno

Gradivo je del revije

Naslov:Key engineering materials
Skrajšan naslov:Key eng. mater.
Založnik:distributed by Trans Tech Publications
ISSN:1013-9826
COBISS.SI-ID:15487749 Novo okno

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