유연벽면 점탄성 소재의 광대역 동특성 계측 기법
Measurement Method of Broadband Dynamic Characteristics of Viscoelastic Material for Compliant Coating
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초록
An improved method to measure the dynamic viscoelastic properties of elastomers is proposed. The method is based on the analysis of forced oscillation of a cylindrical sample loaded with inertial mass. No special equipment or instrumentation other than the ordinary vibration measurement apparatus is required. Typical measurement of the viscoelastic properties of a silicone rubber Silastic® S2 were measured over the wide frequency range from 10 Hz to 3 kHz under the action of wide region of deformation from 10-4% to 5%. It was shown that modulus of elasticity and loss tangent fall on the single curves when the ratio of load mass to sample mass changed from 1 to 20.
Abstract
An improved method to measure the dynamic viscoelastic properties of elastomers is proposed. The method is based on the analysis of forced oscillation of a cylindrical sample loaded with inertial mass. No special equipment or instrumentation other than the ordinary vibration measurement apparatus is required. Typical measurement of the viscoelastic properties of a silicone rubber Silastic® S2 were measured over the wide frequency range from 10 Hz to 3 kHz under the action of wide region of deformation from 10-4% to 5%. It was shown that modulus of elasticity and loss tangent fall on the single curves when the ratio of load mass to sample mass changed from 1 to 20.
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