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oai:www.ideals.illinois.edu:2142/87725 2023-07-11 col_2142_5131 col_2142_46414 com_2142_5130 com_2142_178 com_2142_234

Tortorelli, Daniel A. Pattillo, Phillip David, II 2015-09-28T16:23:41Z 2015-09-28T16:23:41Z 10000-01-01 2004 2004 We develop a space-time, finite-element analysis to simulate the indentation process accurately. The space-time nature of the code allows high degrees of time refinement in the region of interest immediately beneath the indenter, thus improving the computational efficiency of the simulation. The code also tracks the contact interface exactly via a node movement algorithm. We also develop a space-time, finite-element code to examine a viscoplastic material with small elastic dilatations. The flow rule and dislocation evolution equations are based upon the BCJ model of plasticity. Made available in DSpace on 2015-09-28T16:23:41Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3160939.pdf: 3444120 bytes, checksum: ed6b3c92c2e5cd7f7e00d5df673a770f (MD5) Previous issue date: 2004 Embargo set by: Seth Robbins for item 89006 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 95 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2004. http://hdl.handle.net/2142/87725 (MiAaPQ)AAI3160939 eng Engineering, Mechanical A Space -Time Finite-Element Method for the Signorini Problem and for Viscoplasticity With Small Elastic Dilatations text Theoretical and Applied Mechanics Theoretical and Applied Mechanics University of Illinois at Urbana-Champaign Dissertation Ph.D.