A case study on the effect of thermal residual stresses on the crack-driving force in linear-elastic bimaterials
Samo za registrovane korisnike
2009
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The effect of thermal residual stresses in bimaterial structure with initial crack located near a sharp interface is discussed in this paper. Bimaterial compact tension (CT) specimen is used in the analysis, and the residual stresses are introduced by cooling of the specimen. The residual stresses affect the stress and strain fields near the crack tip, and the crack-driving force is different compared with that in the homogeneous material without residual stresses. This difference can be quantitatively expressed through an additional crack-driving force term-the material inhomogeneity term, Cinh. In this paper, it is evaluated using the post-processing procedure based on the concept of configurational forces, following a finite-element analysis. The results indicate that accurate numerical analysis of pre-cracked bimaterials should include the effect of thermally induced residual stresses. This effect cannot be neglected, even for bimaterials with homogeneous mechanical properties and ...inhomogeneity in thermal properties only (e.g. welded joints of ferritic and austenitic steel). Based on the obtained results, data from this study can be used in engineering practice to improve integrity and work safety of various inhomogeneous structures.
Ključne reči:
Inhomogeneous structure / Bimaterial / Residual stresses / Crack-driving force / Numerical computationIzvor:
International Journal of Mechanical Sciences, 2009, 51, 7, 531-540Izdavač:
- Pergamon-Elsevier Science Ltd, Oxford
Finansiranje / projekti:
- Osterreichische Forschungsforderungsgesellschaft mbH
- Province of Styria
- Steirische Wirtschaftsforderungsgesellschaft mbH
- Municipality of Leoben [SP18-WP3]
- Specijalne teme mehanike loma materijala (RS-MESTD-MPN2006-2010-144027)
DOI: 10.1016/j.ijmecsci.2009.05.006
ISSN: 0020-7403
WoS: 000269272100005
Scopus: 2-s2.0-67651113816
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Rakin, Marko AU - Kolednik, O. AU - Međo, Bojan AU - Simha, N. K. AU - Fischer, F.D. PY - 2009 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1412 AB - The effect of thermal residual stresses in bimaterial structure with initial crack located near a sharp interface is discussed in this paper. Bimaterial compact tension (CT) specimen is used in the analysis, and the residual stresses are introduced by cooling of the specimen. The residual stresses affect the stress and strain fields near the crack tip, and the crack-driving force is different compared with that in the homogeneous material without residual stresses. This difference can be quantitatively expressed through an additional crack-driving force term-the material inhomogeneity term, Cinh. In this paper, it is evaluated using the post-processing procedure based on the concept of configurational forces, following a finite-element analysis. The results indicate that accurate numerical analysis of pre-cracked bimaterials should include the effect of thermally induced residual stresses. This effect cannot be neglected, even for bimaterials with homogeneous mechanical properties and inhomogeneity in thermal properties only (e.g. welded joints of ferritic and austenitic steel). Based on the obtained results, data from this study can be used in engineering practice to improve integrity and work safety of various inhomogeneous structures. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - International Journal of Mechanical Sciences T1 - A case study on the effect of thermal residual stresses on the crack-driving force in linear-elastic bimaterials EP - 540 IS - 7 SP - 531 VL - 51 DO - 10.1016/j.ijmecsci.2009.05.006 ER -
@article{ author = "Rakin, Marko and Kolednik, O. and Međo, Bojan and Simha, N. K. and Fischer, F.D.", year = "2009", abstract = "The effect of thermal residual stresses in bimaterial structure with initial crack located near a sharp interface is discussed in this paper. Bimaterial compact tension (CT) specimen is used in the analysis, and the residual stresses are introduced by cooling of the specimen. The residual stresses affect the stress and strain fields near the crack tip, and the crack-driving force is different compared with that in the homogeneous material without residual stresses. This difference can be quantitatively expressed through an additional crack-driving force term-the material inhomogeneity term, Cinh. In this paper, it is evaluated using the post-processing procedure based on the concept of configurational forces, following a finite-element analysis. The results indicate that accurate numerical analysis of pre-cracked bimaterials should include the effect of thermally induced residual stresses. This effect cannot be neglected, even for bimaterials with homogeneous mechanical properties and inhomogeneity in thermal properties only (e.g. welded joints of ferritic and austenitic steel). Based on the obtained results, data from this study can be used in engineering practice to improve integrity and work safety of various inhomogeneous structures.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "International Journal of Mechanical Sciences", title = "A case study on the effect of thermal residual stresses on the crack-driving force in linear-elastic bimaterials", pages = "540-531", number = "7", volume = "51", doi = "10.1016/j.ijmecsci.2009.05.006" }
Rakin, M., Kolednik, O., Međo, B., Simha, N. K.,& Fischer, F.D.. (2009). A case study on the effect of thermal residual stresses on the crack-driving force in linear-elastic bimaterials. in International Journal of Mechanical Sciences Pergamon-Elsevier Science Ltd, Oxford., 51(7), 531-540. https://doi.org/10.1016/j.ijmecsci.2009.05.006
Rakin M, Kolednik O, Međo B, Simha NK, Fischer F. A case study on the effect of thermal residual stresses on the crack-driving force in linear-elastic bimaterials. in International Journal of Mechanical Sciences. 2009;51(7):531-540. doi:10.1016/j.ijmecsci.2009.05.006 .
Rakin, Marko, Kolednik, O., Međo, Bojan, Simha, N. K., Fischer, F.D., "A case study on the effect of thermal residual stresses on the crack-driving force in linear-elastic bimaterials" in International Journal of Mechanical Sciences, 51, no. 7 (2009):531-540, https://doi.org/10.1016/j.ijmecsci.2009.05.006 . .