INTERNAL FRICTION IN SOME HIGH-DAMPING ALLOYSReport as inadecuate




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Abstract : The damping characteristics of two commercial, high-damping materials, a Mn-Cu based alloy and a Zn-Al alloy, have been characterized. A major component of the damping in the Mn-Cu based alloy is amplitude-dependent and only weakly frequency-dependent. In contrast, the damping in the Zn-Al alloy is amplitude-independent and frequency-dependent. Tests have been carried out over the ranges of temperature and vibrational strain amplitude likely to be encountered in the applications of these alloys. Damping mechanisms in the two alloys are also discussed.





Author: Z.-L. Pan K. Sprungmann H. Schmidt I. Ritchie

Source: https://hal.archives-ouvertes.fr/



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