The pre-cracking of wide plate specimens

Gliha, Vladimir; Rojko, Danilo

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Title:	The pre-cracking of wide plate specimens
Authors:	ID Gliha, Vladimir (Author) ID Rojko, Danilo (Author)
Files:	http://dx.doi.org/10.1016/S0308-0161(03)00075-9
Language:	English
Work type:	Unknown
Typology:	1.01 - Original Scientific Article
Organization:	FS - Faculty of Mechanical Engineering
Abstract:	The behaviour of uniformly thick small- and large-scale fracture-toughness specimens was analysed during fatigue-crack progression. Because of the increasing crack length, the stiffness of the specimens decreases. If cyclic loading is applied in the load-control mode, the stress-intensity factor range, $Delta$ K, and crack growth per cycle, da/dN, increase, which is not appropriate for controlling the size of the crack. The increase in $Delta$ K for the wide plate (WP) specimens discussed is three times lower than for single edge notch bend (SENB) and compact tension (CT) specimens. The loading range decreases if cyclic loading is applied in the displacement-control mode. The values of $Delta$ K and da/dN for SENB and CT specimens then decrease, which is helpful for controlling the crack size; however, they increase for the WP specimens in spite of lowering the loading range. This increase is one third lower than for the load-control mode, which means that it is somewhat easier to control the size of crack.
Keywords:	fracture toughness, specimen, pre-cracking, fatigue crak, crack size, stress intensity factor
Year of publishing:	2003
PID:	20.500.12556/DKUM-27680
UDC:	621.791.05:620.17:539.53
ISSN on article:	0308-0161
COBISS.SI-ID:	8128022
NUK URN:	URN:SI:UM:DK:16QAZKTK
Publication date in DKUM:	01.06.2012
Views:	2185
Downloads:	103
Metadata:
Categories:	Misc.
:	GLIHA, Vladimir and ROJKO, Danilo, 2003, The pre-cracking of wide plate specimens. International journal of pressure vessels and piping [online]. 2003. [Accessed 26 March 2025]. Retrieved from: http://dx.doi.org/10.1016/S0308-0161(03)00075-9 Copy citation

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Record is a part of a journal

Title:	International journal of pressure vessels and piping
Shortened title:	Int. j. press. vessels piping
Publisher:	Elsevier
ISSN:	0308-0161
COBISS.SI-ID:	8917765

Secondary language

Language:	English
Keywords:	lomna žilavost, preizkušanec, predrazpoke, utrujenostne razpoke, velikost razpoke, faktor intenzivnosti napetosti

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