Journal
PHYSICAL REVIEW B
Volume 78, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.78.104114
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Funding
- Austrian Science Fund FWF
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Based on density functional theory calculations, we study cleavage under loading mode I, in which the atomic layers are allowed to relax after a crack with a given opening was initiated. By introducing the new materials parameter l(r), the critical opening for relaxed cleavage, we derive a simple analytic formulation describing the decohesion energy and the corresponding stress for relaxed cleavage. In this model, for crack openings smaller than x
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