Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Instituto Politécnico Nacional
2012
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=61426384004 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Table of Contents:
- Correlation between Specimen Size and Fracture Toughness of 1Cr-½Ni Cast Steel Used in the Anchorage of a Cable-Stayed Bridge L. A. Alcaraz-Caracheo J. Terán-Guillén F. J. Carrión-Viramontes M. Martínez-Madrid Ingeniería Cast steel size correlation subsize specimens fracture toughness The fracture toughness of 1Cr-½Ni cast steel, which is used in cable anchorage element, was studied. Subsize specimens were tested following the three-point bending test. Results revealed a quasi-cleavage micromechanism of fracture and a decreasing trend of the apparent fracture toughness as the specimen size decreases. The relation between the size effect on the fracture toughness and the tearing resistance curve shape were established. The value of plane strain fracture toughness has found to be K IC = 39.4+6 MPam1/2. In addition, a linear relationship between the normalized apparent toughness K Q/K IC and the square root of the normalized ligament size have been suggested. It was shown that this relationship is also consistent with experimental data for aluminum and titanium alloys available in the open literature. The methodology employed in this work can be used in future studies, when available specimen sizes are restricted. 2012 artículo científico 1665-0654 https://www.redalyc.org/articulo.oa?id=61426384004 en http://www.redalyc.org/revista.oa?id=614 Científica application/pdf Instituto Politécnico Nacional Científica (México) Num.3 Vol.16