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PMMA丸棒内のねじり波の減衰
PMMA丸棒内のねじり波の減衰
The Attenuation of Torsional Strain Wave in a PMMA Rod
田辺, 裕治
前川, 一郎
半田, 晋一
原, 利昭
日本機械学会
本文データは学会の許諾に基づくCiNiiからの複製である
Shock
Viscoelasticity
PMMA
Impact Torsion
Strain Wave
Fourier Analysis
Attenuation
One-dimensional Wave Propagation Theory
In order to clarify the strain attenuation during shear wave propagation, impact torsion experiments are carried out using a PMMA rod specimen. The strain pulses measured by strain gages are complicated due to the superposition of many reflected and transmitted waves from the supported end of the specimen. To obtain data from such pulses for determining a viscoelastic model, a method which modifies the pulse form is developed taking into account wave propagation behavior in the experimental system. From Fourier components of the modified pulses, complex compliances and viscoelastic constants are evaluated assuming that the three-element standard linear solid model can be applied to the specimen. The attenuation of shear strain with propagation distance is predicted by the one-dimensional viscoelastic wave propagation theory. As a result, predicted values of shear strain agree well with experimental ones.
日本機械学会
1990-01
jpn
journal article
http://hdl.handle.net/10191/5704
https://niigata-u.repo.nii.ac.jp/records/3692
http://ci.nii.ac.jp/naid/110002373000
AN0018742X
03875008
日本機械学会論文集. A編
日本機械学会論文集. A編
56
521
136
139
https://niigata-u.repo.nii.ac.jp/record/3692/files/9_0002.pdf
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2019-07-30