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Brittle dynamic fracture of crystalline cubic silicon carbide (3C-SiC) via molecular dynamics simulation
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10.1063/1.2135896
/content/aip/journal/jap/98/10/10.1063/1.2135896
http://aip.metastore.ingenta.com/content/aip/journal/jap/98/10/10.1063/1.2135896

Figures

Image of FIG. 1.
FIG. 1.

Schematic of the system configuration used in fracture simulations. The strip geometry allows a simple calculation of the mechanical energy release rate, .

Image of FIG. 2.
FIG. 2.

Atomic configurations near the crack tips in brittle fracture of 3C–SiC. (a) shows (110) to be a cleavage surface; (b) shows that (111) is not a cleavage surface since dislocation emission deforms the crack tip; (c) shows that fracture along (001) surfaces is unstable to branching along {110} surfaces.

Image of FIG. 3.
FIG. 3.

Crack-tip speed, , as a function of the mechanical release rate, , for (110) dynamic fracture of 3C-SiC. The inset shows crack-tip speed as function of time at .

Image of FIG. 4.
FIG. 4.

(Color) A snapshot of local tensile-stress distribution in the (110) fracture simulation at .

Tables

Generic image for table
Table I.

Fracture toughness , critical energy release rate , and surface energy of 3C-SiC (110), (111), and (001) surfaces. The present molecular dynamic (MD) results are compared with the other theoretical results.

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/content/aip/journal/jap/98/10/10.1063/1.2135896
2005-11-29
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Brittle dynamic fracture of crystalline cubic silicon carbide (3C-SiC) via molecular dynamics simulation
http://aip.metastore.ingenta.com/content/aip/journal/jap/98/10/10.1063/1.2135896
10.1063/1.2135896
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