Uncertainty on application of bi-linear approximation to tension softening material near creep rupture region
Paper
| Paper/Presentation Title | Uncertainty on application of bi-linear approximation to tension softening material near creep rupture region |
|---|---|
| Presentation Type | Paper |
| Authors | |
| Author | Santhikumar, S. |
| Editors | Aravinthan, Thiru, Karunasena, Warna and Wang, Hao |
| Journal or Proceedings Title | Proceedings of the 20th Australasian Conference on the Mechanics of Structures and Materials (ACMSM 20) |
| Number of Pages | 5 |
| Year | 2009 |
| Place of Publication | London, United Kingdom |
| ISBN | 9780415491969 |
| Conference/Event | 20th Australasian Conference on the Mechanics of Structures and Materials (ACMSM20) |
| Event Details | Rank B B B B B B B B B B B B B B B B B B |
| Event Details | 20th Australasian Conference on the Mechanics of Structures and Materials (ACMSM20) Parent Australasian Conference on the Mechanics of Structures and Materials Event Date 02 to end of 05 Dec 2008 Event Location Toowoomba, Australia |
| Abstract | Tension softening and time-dependence of fracture are coupled phenomena and these have to be taken into account in order to identify the realistic behaviour of concrete. Tension softening behaviour of concrete is generally approximated to bi-linear diagram for simplicity. A thorough study is made of the applicability of this commonly used bi-linear approximation for the static tension-softening response of concrete to predicting its time-dependent response. It is found that the bi-linear approximation predicts a totally wrong creep response in the tertiary region close to creep rupture. The reason for this severe inadequacy is discussed. |
| Keywords | coupled phenomena; creep response; creep ruptures; linear approximations; linear diagrams; static tension; tension softening; time dependence; time-dependent response |
| ANZSRC Field of Research 2020 | 400505. Construction materials |
| 490101. Approximation theory and asymptotic methods | |
| 401605. Functional materials | |
| Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
| Byline Affiliations | Centre of Excellence in Engineered Fibre Composites |
| Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q1342/uncertainty-on-application-of-bi-linear-approximation-to-tension-softening-material-near-creep-rupture-region
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