期刊
INTERNATIONAL JOURNAL OF FRACTURE
卷 208, 期 1-2, 页码 27-52出版社
SPRINGER
DOI: 10.1007/s10704-017-0209-z
关键词
Slip traces; Localization; Crack nucleation; Damage
资金
- Office of Naval Research: MURI [N00014-06-1-0505-A00001]
- Office of Naval Research: FNC [N00014-08-1-0189]
We investigate deformation and failure of Al 6061-T6 in plane strain conditions through in situ scanning electron microscopy. The global behavior of the specimen, as well as the local deformation of the matrix material, second phase particles, and preexisting voids, is observed with a combination of high temporal/low spatial resolution images and low temporal/high spatial resolution images. It is found that the matrix dominates the deformation response, with the second phase particles and voids imparting little influence on the deformation under the moderate triaxiality levels encountered in this experiment. The initiation or nucleation of cracks is observed to occur by plastic slip.
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