Date of Award
Civil and Environmental Engineering
Madugula, Murty K. S.,
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The objective of this research is to study the effects of residual stresses on the ultimate strength of columns made from hot-rolled solid round steel bars. The residual stresses were determined from both experimental study and finite element analysis. In the experimental investigation, classical boring-out method was applied on fourteen samples with different diameters. For three different diameters, finite element models were constructed for the determination of residual stresses. Based on the comparison between the results, the reliability of both experimental and numerical results was analyzed. The effect of residual stresses on the compressive resistance of solid round steel columns was also studied. From the work done, it was found that, (1) Based on the experimental results, the residual stresses appeared to be very small when the diameter of the specimens is larger than 100 mm. FEA simulation results also corroborated this experimental observation. (2) For solid round columns with diameters up to 25 mm, both residual stresses and initial out-of-straightness have remarkable influence on the ultimate strength, especially when the slenderness parameter of the column is larger than 0.88. Further research is needed on these topics for a clearer understanding of the problems. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2000 .D57. Source: Masters Abstracts International, Volume: 40-03, page: 0745. Advisers: Murty K. S. Madugula; Sudip Bhattacharjee. Thesis (M.A.Sc.)--University of Windsor (Canada), 2000.
Ding, Yongcong., "Residual stresses in hot-rolled solid round steel bars and their effect on the compressive resistance of members." (2000). Electronic Theses and Dissertations. 3334.