Surface versus bulk nucleation of dislocations during contact
نویسندگان
چکیده
منابع مشابه
On the Nucleation of Dislocations at a Crystal Surface
An exact expression for the elastic energy associated with a semicircular shear dislocation loop emanating from a free surface is derived (within continuum dislocation theory) and compared with an earlier approximation. The energy required to activate a semicircular dislocation loop into its unstable “saddle-point’’ configuration is then re-calculated, based on the modified expression for the s...
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ژورنال
عنوان ژورنال: Journal of the Mechanics and Physics of Solids
سال: 2007
ISSN: 0022-5096
DOI: 10.1016/j.jmps.2006.12.005