Wing Kam Liu* and Wei Chen, Northwestern University ... - SAMSI
Wing Kam Liu* and Wei Chen, Northwestern University ... - SAMSI
Wing Kam Liu* and Wei Chen, Northwestern University ... - SAMSI
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Illustrative Example: Two-Scale Elasticity, Continued<br />
S 122(Imbedded Crystal) Σ 122(Matrix Crystal)<br />
[ S, Σ]/<br />
Eb<br />
Stationary Crack, 5μm× 5 μm,<br />
� ε ε<br />
−1<br />
nom = 20,000 s , nom = 14%<br />
Materials Design Implications:<br />
Matrix gradient term (curvature, nonlocality) is important for local fracture processes…<br />
accounts for lattice curvature <strong>and</strong> accommodation processes
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