Proceedings Vol. 14 (2008)
ENGINEERING MECHANICS 2008
NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 12 – 15, 2008, Svratka, Czech Republic
;
May 12 – 15, 2008, Svratka, Czech Republic
Editors: Vladimír Fuis and Michal Pásek
Copyright © 2008 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague
ISBN 978-80-87012-11-6 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
INFLUENCE OF NOTCH WIDTH AND LENGTH ON CRACK INITIATION IN 3PB SPECIMENS
Seitl S., Klusák J., Keršner Z.
pages 202 - +5p., full text
pages 202 - +5p., full text
The paper presents the influence of the various notch depths for the range of starting notch width on a crack initiation in three-point bending specimens. These specimens are the most frequently used for fracture laboratory testing, especially of quasi-brittle cement-based composites. It is shown that the values of fracture toughness obtained from the tests of specimens with larger widths with various length of the starting notch can be overestimated.
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All papers were reviewed by members of the scientific committee.
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