The Effect of Different Behavior in Tension than in Compression on the Mechanical Response of Polymeric Materials
High polymers exhibit different stress-strain behavior in tension than in compression. The effect of this characteristic is examined in terms of three-point bending tests on polyethylene and polypropylene. A model to predict the experimentally obtained force-deflection curves is presented and used to illustrate the importance of including both tension and compression stress-strain data when these differ.
KeywordsNonlinear Algebraic Equation Center Deflection Microscopic Stress Columbus Laboratory BATTELLE Columbus Laboratory
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- 1.Ward, I. M., Molecular Order — Molecular Motion: Their Response to Microscopic Stresses, H. H. Kausch (Ed.), Interscience, New York (1971), p 195.Google Scholar
- 3.Iwamura, Y., and Rybicki, E. F., “A Transient Elastic-Plastic Thermal Stress Analysis of Flame Forming”, Presented at 27th ASME Petroleum Division Conference, New Orleans, Louisiana, September 17–21, 1972 (Paper No. 72-PVP-20).Google Scholar
- 5.Scarborough, J. B., Numerical Mathematical Analysis,Fourth Edition, The Johns Hopkins Press, Baltimore, Maryland, pp 185–204.Google Scholar