Approximation of Strain-Stress Curves in Front of a Crack in a Non-Linear Material

Authors suggest a method to compute the parameters in the Ramberg-Osgood constitutive relation, which when used in the Hutchinson-Rice-Rosengren stress formula in front of the crack leads to a good agreement with the stress distribution computed numerically. The method is tested by finite element ca...

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Veröffentlicht in:	International journal of fracture 2010-02, Vol.161 (2), p.227-232
Hauptverfasser:	Neimitz, Andrzej, Galkiewicz, Jaroslaw
Format:	Artikel
Sprache:	eng
Schlagworte:	Approximation Automotive Engineering Characterization and Evaluation of Materials Chemistry and Materials Science Civil Engineering Classical Mechanics Constitutive relationships Exact sciences and technology Finite element method Fracture mechanics Fracture mechanics (crack, fatigue, damage...) Fundamental areas of phenomenology (including applications) Letters in Fracture and Micromechanics Materials Science Mathematical analysis Mathematical models Mechanical Engineering Physics Solid mechanics Static elasticity (thermoelasticity...) Stress concentration Stress distribution Structural and continuum mechanics
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Beschreibung
Zusammenfassung:	Authors suggest a method to compute the parameters in the Ramberg-Osgood constitutive relation, which when used in the Hutchinson-Rice-Rosengren stress formula in front of the crack leads to a good agreement with the stress distribution computed numerically. The method is tested by finite element calculations.
ISSN:	0376-9429 1573-2673
DOI:	10.1007/s10704-010-9444-2