Volume 26, Issue 1 (January 1998)
A New Approach to Measuring Transverse Properties of Structural Tubing by a Ring Test—Experimental Investigation
The experimental investigation of a new approach to the ring test is presented in this paper. A new design of an optimized ring specimen geometry and ring testing system was used, which was described in an earlier paper. Based on the three-dimensional elastoplastic finite element modeling with contact, a procedure for determining the stress from the global force and the strain from the global displacement has been proposed. The influences of different parameters, such as yield strength, hardening rate, Young's modulus, and friction coefficient on these curves has been examined. A comparison has been made between the finite element modeling results and the ring test results on two materials. One is a model material (aluminum-silicon, an aluminum alloy reinforced by silicon particles) that has been widely investigated in our laboratory and the second is a material (Zircaloy) used in the nuclear industry.