ISSN:
1741-2765
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract A controlled-strain apparatus capable of performing the tests essential to establishing the yield locus of polycarbonate was designed and built. Material characterization tests were performed in the form of uniaxial strain rate, creep, isotropy, isoclinic and reloading tests. The yield locus for polycarbonate was determined and an analytical expression in the form of a hypotrochoid was developed. Yield locus results indicate that, although polycarbonate is not a Mises material, the yield locus may be approximated by a circle over a substantial range of Lode’s variable. Tests were run on large plates with holes. Good correlation with two-dimensional theory was obtained in the elastic zone and in the plastic zone where plastic strains were small.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02408441
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