Influence of the arc of strand corner on the stress and strain development in the continous casting ingot

by

Influence of the arc of strand corner on the stress and strain development in the continous casting ingot

Agnieszka Cebo-Rudnicka, Zbigniew Malinowski, Beata Hadała

Faculty of Metals Engineering and Industrial Computer Science,Department of Heat Engineering and Environment Protection, AGH – University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland.

DOI:

https://doi.org/10.7494/cmms.2011.2.0352

Abstract:

Formation of surface and internal cracks during solidification and cooling of steel in the continuous casting process is highly affected by the stress and strain field. The development of stress and strain fields depends on many factors. The most important are cooling parameters, strand shape, arc of casting machine, casting speed and chemical composition of steel. All these parameters influence on the local stress and strain and may cause the failures formation. In this case prediction of crack formation is a very important problem in the design of the continuous casting technology. The effect of the arc of strand corner on the strain and stress development in the continuously caste ingot and on the possibility of cracks formation has been investigated. The analysis has been performed on the ground of numerical calculations for selected fracture criterions and two different arc of strand corner. Finite element method has been employed to compute the stress and strain field in the whole continuous casting line. The thermal stresses have been calculated for the strand temperature determined from the three dimensional steady solution to the heat transport equation. Heat of solidification has been included in the finite element model. The thermal strains and stresses which result from non uniform temperature field were computed and coupled with the strains and stresses caused by bending and unbending of the strand.

Cite as:

Cebo-Rudnicka, A., Malinowski, Z., & Hadała, B. (2011). Influence of the arc of strand corner on the stress and strain development in the continous casting ingot. Computer Methods in Materials Science, 11(2), 343 – 349. https://doi.org/10.7494/cmms.2011.2.0352

Article (PDF):

Keywords:

Continuous casting, Crack formation, Finite element method

References:

Arimacombe, J.K., Sorimachi, K., 1977, Crack formation in the continuous casting of steel. Metallurgical and Materiale Transactions B, 8 (2) 489-505.

Cebo-Rudnicka, A., Malinowski, Z., Gołdasz, A., Hadała, В.. 2010 a, The selected crack criterions sensitivity to the arc changing of the continuous casting machine, 19th International Metallurgical and Materials Conference Metal’10, Roznov pod Radhostem, CD ROM.

Cebo-Rudnicka, A., Malinowski, Z., Gołdasz, Rywotycki, M., 2010 b, Zastosowanie kryteriów pękania do analizy po-wstawania pęknięć wlewka ciągłego, Hutnik-Wiadomości Hutnicze, 77 (11), 646-649.

Gzieło, A., 2006, System zapewniania jakości wlewków ciągłych płaskich stali węglowej, Wydawnictwo Politechniki Częstochowskiej, Częstochowa.

Gołdasz, A., Malinowski, Z., Cebo-Rudnicka, A., Hadała, В., 2010, Wpływ promienia łuku na powstawanie naprężeń i odkształceń we wlewku odlewanym w sposób ciągły. Hutnik   Wiadomości Hutnicze, 77 (4), 186-191.

Hadała, В., Malinowski, Z., 2009, Accuracy of the finite element solution to steady convection-diffusion heat transport equation in continuous casting problem, Computer Methods in Materials Science, 9 (2), 302-307.

Kim, K.-H., Yeo, T.-J., Oh, K.H., Lee, D.N., 1996, Effect of carbon and sulfur in continuously cast strand on longitudinal surface cracks, ISIJ International, 36 (3), 284-289.

Liu, B.C., Kang, J.W., Xiong, S.M., 2001, A study on the numerical simulation of thermal stress during the solidification of shaped castings, Science and Technology of Advanced Materials, 2, 157-164.

Thomas, B.G., 2001, Modeling of the continuous casting of steel – past, present and future, Proc. 59th Electric Furnace Conf., Pheonix, Iron & Steel Society, 3-30.

Wang, Y.-Ch, Li D.-Y, Peng, Y.-H. Zhu L.-G., 2007, Computational modeling and control system of continuous casting process, The International Journal of Advanced Manufacturing Technology, 33, 1-6.