PHASE METHOD FOR MEASUREMENT OF MODULES OF ELASTICITY, SHARE AND LOGARITHMIC DECREMENT OF VIBRATIONS

摘要

Phase method of determination of module of elasticity along wood fiber, share modulus in radial and tangent planes by frequencies of resonance vibrations and logarithmic decrement of vibrations by width of resonance peaks is in excitation in sample with free ends of long and cross vibrations, and determination of frequencies of measurements of frequency is carried out by phase of vibrations with respect to effect exciting those vibrations.