Direct tension tests on notched and un-notched plain concrete specimens
- 1 March 1993
- journal article
- Published by Thomas Telford Ltd. in Magazine of Concrete Research
- Vol. 45 (162) , 25-35
- https://doi.org/10.1680/macr.1993.45.162.25
Abstract
Direct tension tests were conducted on plain concrete specimens in a stiff loading frame which allowed complete stress-deformation relations to be obtained. The suitability of the specimen shape and the testing apparatus was verified by finite-element analysis. The behaviours of notched and un-notched specimens with different water-cement ratios were examined and compared. Piecewise linear and exponential stress-deformation relations are proposed and interpreted physically. Relationships between fracture parameters fracture energy and brittleness indices) and basic strength properties are also presented.Keywords
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