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oai:www.ideals.illinois.edu:2142/71683 2023-07-11 col_2142_5131 col_2142_46414 com_2142_5130 com_2142_178 com_2142_234

Jiang, Wei 2014-12-16T19:12:35Z 2014-12-16T19:12:35Z 10000-01-01 1985 1985 A study is made in this dissertation of the elastic-plastic and shakedown analysis of tubes subjected to various sustained and cyclic loads and temperatures. The first part of this dissertation gives a general formulation of the tube problem. Exact analytical elastic-plastic solutions are derived and programs are developed at the same time to make the method applicable to engineering practice. The second part of this dissertation deals with various possible responses of the tube, and the steady state solutions are derived for all the possible cases. The classical incremental method is used in the development. While it works, it is, however, seen to be very complicated. Hence, a general direct method for the shakedown analysis is developed in the third part of this dissertation, which permits a straightforward evaluation of the limit state of the structure. With a program to classify the behavior of the tube and with the shakedown solutions derived, the tube problem can be solved with great ease and accuracy. An example is given to illustrate such procedures, and the computational results are compared with those obtained experimentally. It is found that good agreement is achieved, which justifies the method and the constitutive equations used. Made available in DSpace on 2014-12-16T19:12:35Z (GMT). No. of bitstreams: 1 8600222.pdf: 2314398 bytes, checksum: eb8040d31dac35ecf6fb5d92a82368d7 (MD5) Previous issue date: 1985 Embargo set by: Seth Robbins for item 71849 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 128 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1985. http://hdl.handle.net/2142/71683 (UMI)AAI8600222 Applied Mechanics The Elastic-Plastic and Shakedown Analysis of Tubes Subjected to Sustained and Cyclic Loads text Theoretical and Applied Mechanics Theoretical and Applied Mechanics University of Illinois at Urbana-Champaign Dissertation Ph.D.