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Characterization of the nonlinear behavior of nodular graphite cast iron via inverse identification–Analysis of uniaxial tests (CROSBI ID 230034)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Tomičević, Zvonimir ; Kodvanj, Janoš ; Hild, François Characterization of the nonlinear behavior of nodular graphite cast iron via inverse identification–Analysis of uniaxial tests // European journal of mechanics. A, Solids, 59 (2016), 140-154. doi: 10.1016/j.euromechsol.2016.02.010

Podaci o odgovornosti

Tomičević, Zvonimir ; Kodvanj, Janoš ; Hild, François

engleski

Characterization of the nonlinear behavior of nodular graphite cast iron via inverse identification–Analysis of uniaxial tests

The aim of this work is to estimate the parameters of elastoplastic and damage laws for nodular graphite cast iron from a cyclic uniaxial test on a dog-bone sample. The paper focuses on the identification of material parameters coupling finite element models and full-field measurements. The gap between the measured and simulated data is used to estimate the quality of the proposed constitutive postulates. Last, a cyclic uniaxial experiment is carried out in a lab tomograph to reveal the damage micromechanism. Digital volume correlation is used to measure displacement fields in the bulk of the sample. The correlation residuals are used to detect the damage mechanism occurring in the heterogeneous microstructure of the material.

digital image correlation ; digital volume correlation ; full-field measurements ; material parameter identification ; nonlinear constitutive laws

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Podaci o izdanju

59

2016.

140-154

objavljeno

0997-7538

10.1016/j.euromechsol.2016.02.010

Povezanost rada

Strojarstvo

Poveznice
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