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Communication Dans Un Congrès Année : 2004

Specimen geometry effects on 316L(N) creep crack growth analyses

Résumé

The ASTM E1457-98 standard [1] describes the procedure allowing to determine the master curve da/dt versus C* parameter, for creeping solids. However, the methodology is only to be applied on CT specimens. The European collaborative program CRETE aims at extending the application of the ASTM E1457-98 standard to other types of laboratory specimens. In this paper, existing database of creep crack growth on 316L(N) stainless steel is utilised, concerning three types of specimens: Circumferentially Cracked Round Bars (CCRB) and Double Edge Notched Tensile specimens (DENT) for tensile mechanical loading whereas classical CT specimen combines tensile and bending loading modes. The geometry effect is first investigated by introducing the Q* parameter by analogy to Q parameter in the elastic-plastic J-Q approach. A modified procedure based on the ASTM E1457-98 standard has been applied to the database, allowing to plot a unique master curve da/dt vs C*.
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Dates et versions

hal-00165077 , version 1 (04-12-2013)

Identifiants

  • HAL Id : hal-00165077 , version 1

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Lucien Laiarinandrasana, Moulay Kabiri. Specimen geometry effects on 316L(N) creep crack growth analyses. Advanced fracture mechanics for life and safety assessments - ECF 15, Aug 2004, Stockholm, Sweden. 8 p. ⟨hal-00165077⟩
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