... The isotropic and/or orthotropic elastic constants of ceramic matrix composites are measured from the impact sound of a small rectangular bar specimen which is suspended by thin ceramic threads in a furnace. The natural frequencies at high temperatures of the flexural and torsional vibration...

... The impulse excitation technique is a dynamic method of measurement based on the analysis of a transient vibration of the test object resulting from a mechanical impact. The result is a precise indication of the fundamental natural frequency of this vibration. This information may be used...

... are so important that the flexural rigidities must be kept within tolerance. ski tests mechanical properties bending deflection torsion moment of inertia ski mass natural frequency ski vibration Toshiyuki Sakata^ Considerations on Mechanical Properties of Skis REFERENCE: Sakata, T...