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Graphical method to determine the parameters of the two-parameter fracture model for concrete

✍ Scribed by K.T. Sundara Raja Iyengar; S. Raviraj; A. Venkateswara Gupta

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
360 KB
Volume
51
Category
Article
ISSN
0013-7944

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✦ Synopsis

To evaluate the parameters in the two-parameter fracture model, i.e. the critical stress intensity factor and critiLcal crack tip opening displacement for the fracture of plain concrete in Mode 1 for the given test configuration and geometry, considerable computational effort is necessary. A simple graphical method has beam proposed using normalized fracture parameters for the three-point bend (3PB) notched specimen and the double-edged notched (DEN) specimen. A similar graphical method is proposed to compute the maximum load carrying capacity of a specimen, using the critical fracture parameters both for 3PB and DEN configurations.

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