Fracture processes numerical modeling of elastic-brittle bodies with statistically distributed subregions strength values

This work is devoted to the fracture processes numerical modeling of elastic-brittle bodies taking into account the statistical distribution of subregions strength values and stress concentration. The novel formulation of the boundary value problem and its solution algorithm are developed. The loadi...

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Published inFrattura ed integritá strutturale Vol. 18; no. 68; pp. 325 - 339
Main Authors E.V. Feklistova, A.I. Mugatarov, V.E. Wildemann, A.A. Agishev
Format Journal Article
LanguageEnglish
Published Gruppo Italiano Frattura 01.04.2024
Subjects
brittle body
finite element method
fracture
numerical modeling
strength properties distribution
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Summary:This work is devoted to the fracture processes numerical modeling of elastic-brittle bodies taking into account the statistical distribution of subregions strength values and stress concentration. The novel formulation of the boundary value problem and its solution algorithm are developed. The loading diagrams obtained in computational simulations, the corresponding growth curves of the destroyed elements relative number and the damaging process kinetics are analyzed. The presence of the postcritical deformation stage at the macro-level is noted. The influence of the strength properties distribution range and the depth of the concentrator on the maximum load value and the damage evolution is determined. The significant influence of the finite elements properties distribution on the fracture processes modeling results is concluded
ISSN:1971-8993
DOI:10.3221/IGF-ESIS.68.22