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VESELÝ, V. ŘOUTIL, L. SEITL, S.
Original Title
Wedge-Splitting Test - Determination of Minimal Starting Notch Length for Various Cement Based Composites. Part I: Cohesive Crack Modelling
Type
journal article - other
Language
English
Original Abstract
The geometric proportions of cube-shaped specimens subjected to wedge-splitting tests are numerically studied in the paper. The minimal notch length for specimens made of cement based composites varying in characteristic length of the material (a measure of material brittleness/heterogeneity) is verified using finite element method code with an implemented cohesive crack model (ATENA). The problem of assigning the crack initiation point (the notch tip vs. the groove corner in the load-imposing area of the specimen) is solved numerically also using both the theory of linear elastic fracture mechanics and the theory of the fracture mechanics of generalized singular stress concentrators in the second part of the two-part paper. Results obtained by the different approaches are compared. The minimal notch length is recommended.
Keywords
wedge-splitting test, cementitious composites, quasi-brittle fracture, brittleness, characteristic length, notch length.
Authors
VESELÝ, V.; ŘOUTIL, L.; SEITL, S.
RIV year
2010
Released
15. 10. 2010
Location
Švýcarsko
ISBN
1013-9826
Periodical
Key Engineering Materials (print)
Year of study
10
Number
4
State
Swiss Confederation
Pages from
77
Pages to
80
Pages count
BibTex
@article{BUT50171, author="Václav {Veselý} and Ladislav {Řoutil} and Stanislav {Seitl}", title="Wedge-Splitting Test - Determination of Minimal Starting Notch Length for Various Cement Based Composites. Part I: Cohesive Crack Modelling", journal="Key Engineering Materials (print)", year="2010", volume="10", number="4", pages="77--80", issn="1013-9826" }