Three-Dimensional Characterization of Fatigue Crack Propagation Behavior in an Aluminum Alloy Using High Resolution X-Ray Microtomography
2010 ◽
Vol 638-642
◽
pp. 378-383
◽
Keyword(s):
X Ray
◽
Synchrotron X-ray microtomography was used to investigate the three-dimensional fatigue crack propagation behavior of an aluminum alloy. Local crack growth rates along specimen thickness were calculated. Crack observation revealed that crack propagation was retarded in three regions where there exist overlapping crack segments. Crack growth retardation was found to occur in these crack overlapping regions due to stress shielding. Observation of crack propagation process indicated that one of the overlapping crack segments initiated from the twisted crack. Crack tip opening displacement was measured and it was found that crack opening was larger in single planar crack region than that in crack overlapping region.
2016 ◽
Vol 669
◽
pp. 367-378
◽
1974 ◽
Vol 96
(4)
◽
pp. 249-254
◽
Influence of SiC Particles on Fatigue Crack Propagation Behavior of Aluminum Alloy Matrix Composite.
1996 ◽
Vol 62
(596)
◽
pp. 972-977
2009 ◽
Vol 14
(2)
◽
pp. 77-84
1992 ◽
Vol 41
(461)
◽
pp. 246-252
2015 ◽
Vol 56
(3)
◽
pp. 424-428
◽
1996 ◽
Vol 217-222
◽
pp. 1599-1604
◽