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Thermal fracture as a framework for quasi-static crack propagation

Corson, F. ; Adda-Bedia, M. ; Henry, H. ; Katzav, E.

International journal of fracture, 2009-07, Vol.158 (1), p.1-14 [Periódico revisado por pares]

Dordrecht: Springer Netherlands

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Título:
Thermal fracture as a framework for quasi-static crack propagation
Autor: Corson, F. ; Adda-Bedia, M. ; Henry, H. ; Katzav, E.
Assuntos: Analytical and numerical techniques ; Automotive Engineering ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Civil Engineering ; Classical and quantum physics: mechanics and fields ; Classical Mechanics ; Classical mechanics of continuous media: general mathematical aspects ; Computer simulation ; Crack propagation ; Crack tips ; Criteria ; Evolution ; Exact sciences and technology ; Fracture mechanics ; Fracture mechanics (crack, fatigue, damage...) ; Fundamental areas of phenomenology (including applications) ; Heat transfer ; Materials Science ; Mathematical analysis ; Mathematical models ; Mechanical Engineering ; Mechanics ; Original Paper ; Path predictors ; Physics ; Propagation ; Solid mechanics ; Stability ; Stress intensity factors ; Stress propagation ; Structural and continuum mechanics ; Wave propagation
É parte de: International journal of fracture, 2009-07, Vol.158 (1), p.1-14
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: We address analytically and numerically the problem of crack path prediction in the model system of a crack propagating under thermal loading. We show that one can explain the instability from a straight to a wavy crack propagation by using only the principle of local symmetry and the Griffith criterion. We then argue that the calculations of the stress intensity factors can be combined with the standard crack propagation criteria to obtain the evolution equation for the crack tip within any loading configuration. The theoretical results of the thermal crack problem agree with the numerical simulations we performed using a phase field model. Moreover, it turns out that the phase-field model allows to clarify the nature of the transition between straight and oscillatory cracks which is shown to be supercritical.
Editor: Dordrecht: Springer Netherlands
Idioma: Inglês

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Thermal fracture as a framework for quasi-static crack propagation

Corson, F. ; Adda-Bedia, M. ; Henry, H. ; Katzav, E.

Dordrecht: Springer Netherlands

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