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oai:www.ideals.illinois.edu:2142/87764 2023-07-11 col_2142_5131 col_2142_46414 com_2142_5130 com_2142_178 com_2142_234

Thomas, Brian G. Zhu, Hong 2015-09-28T16:23:54Z 2015-09-28T16:23:54Z 10000-01-01 1997 1997 A coupled transient finite-element model based on the fixed-grid implementation of this formulation is developed to simulate temperature, shape, and stress development in a solidifying steel shell during the initial stage of continuous casting. This verified model is applied to predict the distorted shape of a vertical section through the solidifying shell, during a sudden fluctuation in liquid level at the meniscus. The results show that thermal stress causes the exposed portion of the thin shell to bend towards the liquid, when there is a severe, sudden drop in liquid level. The subsequent rise in liquid level increases the bending. These results illustrate an important mechanism contributing to the formation of transverse surface depressions and short longitudinal surface cracks associated with severe liquid level fluctuations. Made available in DSpace on 2015-09-28T16:23:54Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9737303.pdf: 3955863 bytes, checksum: dadae14ce5b57cdbbf67079c40c235f5 (MD5) Previous issue date: 1997 Embargo set by: Seth Robbins for item 89045 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 132 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1997. http://hdl.handle.net/2142/87764 (MiAaPQ)AAI9737303 eng Engineering, Mechanical Coupled Thermal-Mechanical Fixed-Grid Finite-Element Model With Application to Initial Solidification text Theoretical and Applied Mechanics Theoretical and Applied Mechanics University of Illinois at Urbana-Champaign Dissertation Ph.D.