An experimental technique to study impulse-wave propagation in materials
Abstract
The dynamic characteristics of materials are studied with a technique which uses a mechanical shaker to subject vertically mounted specimens to impulsive forces. The mounting of the specimens over the mechanical shaker with a suspension system is examined. The components of the coupling assembly are described. The electric circuitries for the adjustment of shaker-platform height and suspending-wire tension, and for the acceleration-response measurement of impacted specimens are diagramatically presented. The procedures for studying impulse-wave propagation in materials are discussed; accelerometer response is utilized to determine the velocity of the impulse-wave propagation in the test specimens. The design and function of the suspension and coupling system are evaluated. The data reveal that the technique is applicable for analyzing the impulse-wave propagation in cylindrical specimens, biomechanical measurements, and modal analysis.
- Publication:
-
Experimental Techniques
- Pub Date:
- January 1986
- Bibcode:
- 1986ExT....10...30Y
- Keywords:
-
- Biodynamics;
- Bones;
- Dynamic Loads;
- Stress Waves;
- Wave Propagation;
- Experiment Design;
- Impulses;
- Shakers;
- Instrumentation and Photography