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Wedge-Splitting Test – Determination of Minimal Starting Notch Length for Various Cement Based Composites. Part I: Cohesive Crack Modelling
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SYSNO ASEP 0354593 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Wedge-Splitting Test – Determination of Minimal Starting Notch Length for Various Cement Based Composites. Part I: Cohesive Crack Modelling Author(s) Veselý, V. (CZ)
Řoutil, L. (CZ)
Seitl, Stanislav (UFM-A) RID, ORCIDNumber of authors 3 Source Title Key Engineering Materials - ISSN 1013-9826
Roč. 452-453, - (2011), s. 77-80Number of pages 4 s. Language eng - English Country CH - Switzerland Keywords wedge-splitting test ; cementitious composites ; quasi-brittle fracture ; brittleness Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects KJB200410901 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000287421700020 DOI 10.4028/www.scientific.net/KEM.452-453.77 Annotation 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 usány 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 Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2011
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