2010
DOI: 10.1016/j.engfracmech.2009.10.001
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J and CTOD estimation procedure for circumferential surface cracks in pipes under bending

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Cited by 42 publications
(30 citation statements)
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“…In the above fully plastic solutions for J and CTOD, h 1 and h 2 are dimensionless factors dependent upon crack size, component geometry and strain hardening properties. Chiodo and Ruggieri [25] provide further analyses of the fully plastic approach to evaluate J and CTOD in cracked configurations and discuss in detail the validity of the methodology under large scale yielding. In particular, they showed that a strong linear relationship between J and CTOD holds true for circumferentially cracked pipes under bending and large scale yielding conditions.…”
Section: J-ctod Relation Under Large Scale Yielding Based On Fully Plmentioning
confidence: 99%
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“…In the above fully plastic solutions for J and CTOD, h 1 and h 2 are dimensionless factors dependent upon crack size, component geometry and strain hardening properties. Chiodo and Ruggieri [25] provide further analyses of the fully plastic approach to evaluate J and CTOD in cracked configurations and discuss in detail the validity of the methodology under large scale yielding. In particular, they showed that a strong linear relationship between J and CTOD holds true for circumferentially cracked pipes under bending and large scale yielding conditions.…”
Section: J-ctod Relation Under Large Scale Yielding Based On Fully Plmentioning
confidence: 99%
“…Assuming again an elastic-plastic power hardening model to describe the true stress ðrÞ vs. true (logarithmic) strain ðÞ behavior in the form of previous Eq. (1) and employing the condition that the fully plastic crack-tip stresses, strains and displacements simply scale with the applied load, P, it can be shown that J and CTOD will be proportional to P nþ1 [6,[23][24][25]. Thus, the fully plastic solutions for J and CTOD can be expressed as…”
Section: J-ctod Relation Under Large Scale Yielding Based On Fully Plmentioning
confidence: 99%
“…onde m é uma constante adimensional [28,1]. A componente plástica do CTOD é obtida de maneira análoga ao da Integral J, sendo definida por…”
Section: )unclassified
“…A relação constitutiva segue a teoria de escoamento de Mises e pequenas deformações (SGC) [1]. As análises consideram um material caracterizado por uma onde σ ys e ε ys são a tensão e deformação de referência (escoamento), e n denota o coeficiente de encruamento.…”
Section: Análises Elasto-plásticasunclassified
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