This report is a theoretical and experimental investigation of the creep-torsion of non-circular prismatic bars. The theory is developed using an energy approach and assumes the material is homogeneous, isotropic and incompressible, the deformations are small and the total strain theory is valid. An isochronous stress-strain diagram, which is approximated by an arc hyperbolic sine function, is used to represent the stress-strain-time relation for the material. As a closed solution could not be obtained, the Rayleigh-Ritz procedure was used.
Experimental data was obtained by applying pure torque to specimens of high density polyethylene. Four cross-sectional shapes were tested, a square, a rectangle, a triangle and an I-section. The theory and experiment in most cases were in good agreement.
Publisher
Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report Name or Number
TAM R 198
1967-0494
ISSN
0073-5264
Type of Resource
text
Language
eng
Permalink
http://hdl.handle.net/2142/111911
Copyright and License Information
Copyright 1961 Board of Trustees of the University of Illinois
TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.
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