Measurement of Elastic Constants for Composite Materials by 3-Point Bending, Twisting and Impact Sound Test
Analyzing a sound produced by an impact of a fallen ball upon a small rectangular bar specimen, elastic moduli of engineering ceramic composites can be determined. In this paper,three-points bending and torsional test devices which employed the specimen for the impactsound test were designed. Using the devices, elastic moduli of various materials were mea-sured applying deformation theory. The elastic constants evaluated by the impact sound testwere compared with those measured by the devices. They agreed well. A reliable measure-ment system was developed for elastic constants of anisotropic materials.
Kikuo Kishimoto, Masanori Kikuchi, Tetsuo Shoji and Masumi Saka
T. Yoshida et al., "Measurement of Elastic Constants for Composite Materials by 3-Point Bending, Twisting and Impact Sound Test", Key Engineering Materials, Vols. 261-263, pp. 1611-1616, 2004