Plastic relaxation at a crack tip by asymmetric slip
1988 ◽
Vol 418
(1854)
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pp. 261-280
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Keyword(s):
Relaxation at a sharp crack tip by a single slip band is considered. It is shown that for mixed-mode loading of a plane crack in an isotropic medium there is a unique angle between the slip band and the crack for which the energy release rate (or stress intensity factor) of the crack can be reduced to zero. For such a slip-band calculations are made of the slipband length and the crack-opening displacement as a function of the loading, crack length and friction stress acting on dislocations in the slip band. For small-scale yielding, a simple model is discussed that gives a good approximation to the crack-tip opening displacement and slip-band angle.
2010 ◽
Vol 36
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pp. 157-161
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2006 ◽
Vol 324-325
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pp. 295-298
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2011 ◽
Vol 78
(7)
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pp. 1441-1451
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2006 ◽
pp. 295-298
2006 ◽
Vol 30
(11)
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pp. 1455-1460
2012 ◽
Vol 188
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pp. 11-16
2000 ◽
Vol 37
(26)
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pp. 3591-3618
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