INFLUENCE OF NOTCH WIDTH AND LENGTH ON CRACK INITIATION IN 3PB SPECIMENS
Abstract eng: 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.
Contributors:
Publisher:
Institute of Thermomechanics AS CR, v.v.i., Brno
Conference Title:
Conference Title:
Engineering Mechanics 2008
Conference Venue:
Svratka (CZ)
Conference Dates:
2008-05-12 / 2008-05-15
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2014-11-13, last modified 2014-11-18
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