Impact of specific fracture energy investigated in front of the crack tip of three-point bending specimen

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-...

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Bibliographic Details
Published inFrattura ed integritá strutturale Vol. 11; no. 41; pp. 183 - 190
Main Authors Klon, J., Sobek, J., Malíkova, L., Seitl, S.
Format Journal Article
LanguageEnglish
Published Cassino Gruppo Italiano Frattura 01.07.2017
Subjects
Bend tests
Bending
Cohesion
Computer programs
Computer simulation
Cracks
Energy value
Environmental impact
Finite element method
Fracture toughness
Fractures
Loading curve
Mathematical models
Size effects
Software
Specific fracture energy
Three-point bending test
Work of fracture
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Summary: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.
ISSN:1971-8993
1971-8993
DOI:10.3221/IGF-ESIS.41.25