Approximation of bending fracture model by load-deflection diagrams
Abstract eng: Three point bending test of central notched specimen is used for determination of fracture properties of concrete, mortar and hardened cement paste. The properties – e.g. effective fracture toughness and effective crack length, fracture energy and also modulus of elasticity – are calculated on the base of load-deflection (l-d) diagrams from mentioned test. An approximation of model of recorded l-d diagram is possible to use for estimation of these properties, which can serve as input values for numerical modelling of fracture. The model – bending fracture model – of l-d diagrams obtained from experiments is introduced in this paper.
Contributors:
Publisher:
Institute of Thermomechanics AS CR, v.v.i., Brno
Conference Title:
Conference Title:
ENGINEERING MECHANICS 2005
Conference Venue:
Svratka (CZ)
Conference Dates:
2005-05-09 / 2005-05-12
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
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Record created 2014-11-12, last modified 2014-11-18
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