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The dynamic shear modulus and internal friction of a fiber vibrating in the torsional mode

 

作者: H. M. Simpson,   B. E. Fortner,  

 

期刊: American Journal of Physics  （AIP Available online 1987）
卷期: Volume 55, issue 1  

页码: 44-46

 

ISSN:0002-9505

 

年代: 1987

 

DOI:10.1119/1.14957

 

出版商: American Association of Physics Teachers

 

关键词: ELASTIC CONSTANTS;INTERNAL FRICTION;PENDULUMS;FIBERS;BORON ALLOYS;TUNGSTEN ALLOYS;OSCILLATIONS;MEASURING METHODS;MATERIALS TESTING

 

数据来源: AIP

 

摘要:

A torsional pendulum consisting of an 8‐mil boron–tungsten fiber and inertial member is described. The torsional oscillations are excited electrostatically and detected by a frequency modulation technique. Both the dynamic shear modulus and the internal friction can be measured. In addition, this system exhibits the resonance behavior characteristic of a highQoscillator.

 

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