Abstract
Local criteria consist, within the field of continuum mechanics, in a simulation of the metallurgical damage occurring at a crack tip. The restrictions of more usual approaches such as mode I loading, plane strain state, isothermal situation, moderate yielding etc…, are no longer effective at the expense of non linear finite element calculations. Ductile damage is predicted through a simulation of cavities growth which either influences the constitutive relations or is a criterion for fracture assuming. a critical cavity size. Practically, two parameters, independent on temperature are necessary. They are measured using two different specimen geometries: one with a crack and the other one without. These two parameters allow the prediction of fracture of one mesh element in a finite element program. This procedure is used to predict crack initiation and stable crack growth in different structures.
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© 1985 ECSC,EEC,EAEC, Brussels and Luxembourg
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Mudry, F. (1985). Methodology and Applications of Local Criteria for the Prediction of Ductile Tearing. In: Larsson, L.H. (eds) Elastic-Plastic Fracture Mechanics. Ispra Courses on Materials, Engineering and Mechanical Science. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5380-2_10
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DOI: https://doi.org/10.1007/978-94-009-5380-2_10
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