Abstract

Results are presented for a procedure for determining the damping capacity (inelasticity characteristic) of a material in terms of the phase shift between longitudinal and transverse strains. The effect of each element of a phase shift measurement system is evaluated and a method is suggested for ways of excluding it or taking it into account. It is shown in particular that failure to consider the hysteresis of strain gages leads to an overestimate of the measured inelasticity characteristics using the force hysteresis dynamic loop method and to an underestimate in the case of using the strain hysteresis dynamic loop method.

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