Clamping corrections for torsional stiffness of prismatic bars
article
To make twist proportional to length, corrections must be applied to the free specimen length between the clamps. These corrections are determined experimentally by clamping a specimen of polymeric material over various lengths and extrapolating the torsion angle to zero length. For cylinders with ring-shaped clamps, a two-sided correction was found of 0·235 of the diameter. For rectangular specimens with flat-plate clamping at the ends, the correction varies between 0·20 (square cross section) and -0·55 (very slender cross section) of the greatest width. Results only partly correspond with theoretical predictions, since theoretical and experimental conditions are not identical.
TNO Identifier
227296
ISSN
00223727
Source
Journal of Physics D: Applied Physics, 4(11), pp. 1661-1667.
Article nr.
307
Pages
1661-1667
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