Open AccessImpact of specific fracture energy investigated in front of the crack tip of three-point bending specimen
Author(s) -
Jiří Klon,
Jakub Sobek,
Lucie Malíková,
Stanislav Seitl
Publication year - 2017
Publication title -
frattura ed integrità strutturale
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.368
H-Index - 19
ISSN - 1971-8993
DOI - 10.3221/igf-esis.41.25
Subject(s) - bending , three point flexural test , materials science , fracture (geology) , structural engineering , composite material , front (military) , point (geometry) , crack tip opening displacement , fracture mechanics , crack closure , engineering , mechanical engineering , geometry , mathematics
Presented study is focused on the analysis of the dependence of the specific fracture energy value on the assumed work of fracture in threepoint bending tests. Specimens of different sizes and relative notch lengths are assumed in this study, in order to take into account the size effect. The three-point bending test of cracked specimens is simulated numerically by means of commercial software based on the finite element method with implemented cohesive crack model. Three levels of the specific fracture energy are considered