Abstract
Cohesive zone model has been widely applied to simulate crack growth along interfaces, but its application to crack growth perpendicularly across the interface is rare. In this paper, the cohesive zone model is applied to a crack perpendicularly approaching a compliant/stiff interface in a layered material model. One aim is to understand the differences between the cohesive zone model and linear elastic fracture mechanics in simulating mode I crack growth near a compliant/stiff interface. Another aim is to understand the effects of elastic modulus mismatch and cohesive strength of the stiff layer on the crack behavior near the interface. To simulate crack growth approaching an interface, the cohesive zone model which incorporates both the energy criterion and the strength criterion is an effective method.
Original language | English |
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Pages (from-to) | 3408-3417 |
Number of pages | 10 |
Journal | Engineering Fracture Mechanics |
Volume | 77 |
Issue number | 17 |
DOIs | |
Publication status | Published - Nov 2010 |
Externally published | Yes |
Keywords
- Cohesive zone modeling
- Crack arrest
- Finite element analysis
- Interface fracture
- Layered material
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering