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Investigation of closure of internal cracks during rolling by FE model considering crack surface roughness

Journal Article


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Abstract


  • Internal cracks often appear in cast slabs, and their evolution during hot deformation directly affects the product quality. In this paper, the authors investigate the closure behavior of internal cracks during plate rolling using a finite element (FE) model that takes into account the roughness of the crack surface. Influences of the roughness and reduction ratio on the closure of cracks are analyzed. The simulated results show that the models with consideration of the initial crack roughness can be used to investigate the formation of residual voids around the crack after rolling. The simulation results are validated by experimental observations. Finally, we propose an explanation of the crack closure mechanism during rolling.

Publication Date


  • 2014

Citation


  • Yu, H., Tieu, A. K., Lu, C. & Godbole, A. R. (2014). Investigation of closure of internal cracks during rolling by FE model considering crack surface roughness. International Journal of Advanced Manufacturing Technology, 75 (9-12), 1633-1640.

Scopus Eid


  • 2-s2.0-85027954294

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4166&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3150

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 1633

End Page


  • 1640

Volume


  • 75

Issue


  • 9-12

Place Of Publication


  • United Kingdom

Abstract


  • Internal cracks often appear in cast slabs, and their evolution during hot deformation directly affects the product quality. In this paper, the authors investigate the closure behavior of internal cracks during plate rolling using a finite element (FE) model that takes into account the roughness of the crack surface. Influences of the roughness and reduction ratio on the closure of cracks are analyzed. The simulated results show that the models with consideration of the initial crack roughness can be used to investigate the formation of residual voids around the crack after rolling. The simulation results are validated by experimental observations. Finally, we propose an explanation of the crack closure mechanism during rolling.

Publication Date


  • 2014

Citation


  • Yu, H., Tieu, A. K., Lu, C. & Godbole, A. R. (2014). Investigation of closure of internal cracks during rolling by FE model considering crack surface roughness. International Journal of Advanced Manufacturing Technology, 75 (9-12), 1633-1640.

Scopus Eid


  • 2-s2.0-85027954294

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4166&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3150

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 1633

End Page


  • 1640

Volume


  • 75

Issue


  • 9-12

Place Of Publication


  • United Kingdom