Energy release rates of bi-material interface crack including residual thermal stresses: Application of crack tip element method

Crack tip element method is applied to the formulation of the energy release rate associated with interfacial crack growth of laminates with residual thermal stresses using the Timochenko beam model. Special attention is paid to the energy release rates of double cantilever beam and mixed-mode bendi...

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Bibliographic Details
Published in:Engineering fracture mechanics 2010, Vol.77 (1), p.84-93
Main Author: Yokozeki, Tomohiro
Format: Article
Language:English
Subjects:
Delamination
Exact sciences and technology
Fiber-reinforced materials
Fracture mechanics (crack, fatigue, damage...)
Fundamental areas of phenomenology (including applications)
Interface fracture
Mixed-mode fracture
Physics
Residual stresses
Solid mechanics
Static elasticity (thermoelasticity...)
Structural and continuum mechanics
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Summary:Crack tip element method is applied to the formulation of the energy release rate associated with interfacial crack growth of laminates with residual thermal stresses using the Timochenko beam model. Special attention is paid to the energy release rates of double cantilever beam and mixed-mode bending tests of bi-material specimens, and mode-I and mode-II energy release rates are formulated including residual thermal stresses. The derived results are verified by the comparison to finite element analysis, and the effect of residual thermal stresses on the mode mixity of the double cantilever beam and mixed-mode bending tests is discussed.
ISSN:0013-7944
1873-7315
DOI:10.1016/j.engfracmech.2009.09.018