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Influence of state of stress on mixed mode stable crack growth through D16AT aluminium alloy

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Title Influence of state of stress on mixed mode stable crack growth through D16AT aluminium alloy
 
Creator MOURAD, AHI
MAITI, SK
 
Subject elastic-plastic solids
finite-element analysis
ji-r curve
plane-stress
tip fields
hardening materials
dynamic fields
fracture
tension
steel
 
Description The stable crack growth through three-point bend (TPB) and stiffened and unstiffened compact tension (CT) specimens of D16AT aluminium alloy has been studied both theoretically and experimentally. The specimen thickness is 8 mm. The variation of load with crack opening displacement, the extent of stable crack growth, the cumulative plastically deformed zone and crack edge profiles have been obtained experimentally. These are also predicted theoretically under the assumption of either a state of plane stress or plane strain using a finite element scheme and the COA criterion. Generally, the experimental results agree well with the predictions based on the plane stress condition. There appears to be no significant variation in size of the experimental cumulative plastic zone across the specimen thickness, thereby indicating that the constraint on the plastic zone does not develop near the mid-thickness region.
 
Publisher KLUWER ACADEMIC PUBL
 
Date 2011-08-17T06:19:31Z
2011-12-26T12:55:24Z
2011-12-27T05:39:34Z
2011-08-17T06:19:31Z
2011-12-26T12:55:24Z
2011-12-27T05:39:34Z
1995
 
Type Article
 
Identifier INTERNATIONAL JOURNAL OF FRACTURE, 72(3), 241-258
0376-9429
http://dx.doi.org/10.1007/BF00037313
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9776
http://hdl.handle.net/10054/9776
 
Language en