The Anelasticity in the Spring-Mass System

Autor:	Yoshiro Sadamoto, Jun-ichi Ueda, Yasuko Nishiyama, Kenji Fukushima
Rok vydání:	1996
Předmět:	Physics::Fluid Dynamics Physics Stress (mechanics) Gravitation Gravitational constant Classical mechanics Gravitational wave Newtonian fluid General Physics and Astronomy Context (language use) Mechanics Constant (mathematics) Effective mass (spring–mass system)
Zdroj:	Journal of the Physical Society of Japan. 65:3853-3857
ISSN:	1347-4073 0031-9015
DOI:	10.1143/jpsj.65.3853
Popis:	The anelasticity of elastic substances now attracts an intense attention of physicists who attempt more precise definition of the Newtonian constant of gravitation and also the detection of gravitational waves. In this context a close understanding of the anelasticity seems to be hasted. We in this paper propose a new dynamical model of the anelasticity which closely reflects the motion of impurities, grain walls, crystalline defects and so on embodied in elastic substances and subjected to applied stress. Recently Ueda and Sadamoto observed an anomalous frequency dependence of the effective-mass in the spring-mass system, which seemed due to the anelasticity and turned out not explainable in terms of a usual visco-elastic model. The new model is shown to be consistent with their experiment and the effective-mass-ratio analysis used by them is demonstrated to be very powerful to determine the anelasticity parameters involved.
Databáze:	OpenAIRE
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