Date of Award


Publication Type

Master Thesis

Degree Name



Civil and Environmental Engineering


Engineering, Civil.


Madugula, M. K. S.,




The compressive resistances of 130 regular and crimped channels were experimentally determined. The effective slenderness ratios of the specimens about y-axis varied from 31 to 189. The specimens were tested as pin-end, flat-end, and welded-end columns in vertical position loaded with an axial compressive load. The applied load and the measured strains were recorded using data-acquisition system. Load strain deflection data for all the specimens were recorded. Experimental failure loads for regular channels were compared with the design strengths according to CSA S136-94 "Cold-Formed Steel Structural Members." Thirty-nine tensile coupons were tested to determine the material properties of the test specimens. Because of unavoidable eccentricities in the application of compressive loads, which varied from the specimens to specimens no direct comparison of the strength of regular and crimped channels would be made. To become familiar with HYPERMESH and ABAQUS finite element programs one regular and one crimped specimen were modelled using a 8-noded shell element. Excellent agreement for buckling strength was observed between the finite element solution and solution from classical theory of stability. The finite element solution for a crimped channel gave a buckling strength, which is 40% less than the strength of regular channels.Dept. of Civil and Environmental Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1999 .V37. Source: Masters Abstracts International, Volume: 39-02, page: 0556. Adviser: M. K. S. Madugula. Thesis (M.A.Sc.)--University of Windsor (Canada), 2000.