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

Tomičević, Zvonimir and Kodvanj, Janoš and Hild, François (2016) Characterization of the nonlinear behavior of nodular graphite cast iron via inverse identification – Analysis of uniaxial tests. = Characterization of the nonlinear behavior of nodular graphite cast iron via inverse identification – Analysis of uniaxial tests. European journal of mechanics. A, Solids, 59. pp. 140-154. ISSN 0997-7538. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2016). Točan broj autora: 3.

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Abstract

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.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): digital image correlation; digital volume correlation; full-field measurements; material parameter identification; nonlinear constitutive laws
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 200 Department of Engineering Mechanics > 220 Chair of Experimental Mechanics
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Quartiles: Q1 (2016)
Date Deposited: 25 Nov 2016 08:28
Last Modified: 08 Mar 2018 13:25
URI: http://repozitorij.fsb.hr/id/eprint/7038

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