Improved Equation for Shear Modulus Using Four-Point Ring-Twist Test Data
Abstract
There are numerous test-specimen configurations for determining the static shear modulus of composites. Selection of specimen configuration depends primarily on product component configuration. Two-ring specimens in use are the split-ring twist specimen and the four-point-loading ring-twist specimen. The latter is more advantageous, since it uses an intact ring. However, reported validation tests on aluminum rings showed a large error in predicted shear modulus. The present paper provides an improved analysis that takes into account the tilting of the cross section on the loading bar.
Citation
Bert, C. W. (2001). Improved Equation for Shear Modulus Using Four-Point Ring-Twist Test Data. Journal of Thermoplastic Composite Materials, 14(6), 489-497. doi: 10.1106/gng0-lr9b-ffkb-rv13