Determining fracture energy parameters of concrete from the modified compact tension test
The modified compact tension (MCT) test, though not yet recognized as a valid test for determining fracture energy of concrete, is believed to represent a plausible and suitable alternative versus other well established procedures, such as the wedge-splitting test (WST) and the three point (3PB) o...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Gruppo Italiano Frattura
2014-10-01
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| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero30/numero_30_art_46.pdf |
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| Summary: | The modified compact tension (MCT) test, though not yet recognized as a valid test for
determining fracture energy of concrete, is believed to represent a plausible and suitable alternative versus other
well established procedures, such as the wedge-splitting test (WST) and the three point (3PB) or four point
bending (4PB) tests, due to its simplicity and low cost. The aim of the paper is twofold: Firstly, to demonstrate
the necessary correspondence between the experimental MCT test setup and finite element simulations and
secondly, to initiate the way of establishing the desirable conversion between the fracture energy parameter
values resulting from the MCT test and the standard conventional procedures. MCT tests are carried out and
compared with the numerical results from 2-D and 3-D finite element calculations using the commercial codes
ABAQUS and ATENA, the latter being specifically developed for applications on concrete structures and
elements. In this way, the usability of the modified compact tension test for practical purposes is confirmed. |
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| ISSN: | 1971-8993 1971-8993 |