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Length scale effects on shear fracture based on a non-local porous plasticity model
KTH, School of Engineering Sciences (SCI), Engineering Mechanics, Vehicle Engineering and Solid Mechanics, Solid Mechanics.ORCID iD: 0000-0003-2470-7679
2017 (English)In: ICF 2017 - 14th International Conference on Fracture, International Conference on Fracture , 2017, p. 1216-1217Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

A non-local continuum damage constitutive model has been developed. The evolution of the damage parameter is driven by a non-local plastic strain rate at low stress triaxiality and by a non-local rate of porosity at higher triaxiality. Nodular cast iron has been employed as a model material for which the model parameters have been calibrated utilizing a variety of tests. The non-local material model is able to explain the different outcome in two sets of tests in pure shear. 

Place, publisher, year, edition, pages
International Conference on Fracture , 2017. p. 1216-1217
Keywords [en]
Cast iron, Nodular iron, Shear flow, Strain rate, Continuum damage, Damage parameter, Length scale effects, Model materials, Model parameters, Porous plasticity, Shear fracture, Triaxiality, Fracture
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-282736Scopus ID: 2-s2.0-85066030350OAI: oai:DiVA.org:kth-282736DiVA, id: diva2:1472566
Conference
14th International Conference on Fracture, ICF 2017, 18 June 2017 through 20 June 2017
Note

QC 20201002

Available from: 2020-10-02 Created: 2020-10-02 Last updated: 2024-01-10Bibliographically approved

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Faleskog, JonasDahlberg, Carl F. O.

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