Application of fracture mechanics model to analyze the flexure crack propagation in the reinforced fiber concrete beams
| Main Author: | Perpustakaan UGM, i-lib |
|---|---|
| Format: | Article NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Fac. of Geography Gadjah Mada Univ
, 2001
|
| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/21018/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=3876 |
Daftar Isi:
- The aim of this research to examine the influence of fiber on the flexure crack propagation in the present study, a fracture mechanics model was proposed by asuming the pulling forces reinforcement and the pulling fiber as a closing force the crack. To calculate the sectional strength, the stress distribution proposed by Carpinteri (1984) and Baluch (1992) was used. From the test, it is obtained that fiber supplementation increased in K1c to 25,4% and CTODc to 52%. From the beams test, it is obtained that the initial crack load, toughness, and displacemet ductility increased to 22%, 20,4%, and 37,7% respectively. From the crack propagation analysis. It is obtained that the calculation in fracture mechanics model, sectional strength, and test results give close values. The results show that the used of fracture mechanics model seems to be good enough in describing the flexure crack propagation in conventional reinforced concrete beams. For fiber concrete, it is obtained that, theoritically, the proposed stress distribution and fracture mechanics model is accurate for describing the flexure crack propagation in the reinforced fiber concrete beams. Key words: fiber concrete beams, fracture toughness, fracture mechanics model, stress distribution.