مقاله Comparison of four test methods to measure damping properties of materials by using piezoelectric transducers : تی پی بین

خلاصه مقاله

This article presents the experimental results of damping loss factor and Young’s modulus obtained for stiff and flexible materials through the use of four different methodologies: the Central Impedance Method, the Modified Oberst Method, the Seismic Response Method, and the simply supported beam method. The first three methods are based on the ASTM standard but using different experimental setting and different Frequency Response Functions. The fourth method corresponds to a non-resonant technique used in the characterization of materials at very low frequencies. In this work, the results of damping loss factor and Young’s modulus obtained through these four methods are compared, the variability of results is studied and the sensitivity of each technique when facing controlled temperature variations is verified.

نویسندگان

Roberto Pereira [ Institute of Acoustics, Univ. Austral de Chile, PO Box 567, Valdivia, Chile ]

Jorge P. Arenas [ Institute of Acoustics, Univ. Austral de Chile, PO Box 567, Valdivia, Chile ]

Ernesto Zumelzu [ Institute of Materials and Thermo-Mechanic Processes, Univ. Austral de Chile, PO Box 567, Valdivia, Chile ]

کلمات کلیدی

Comparison four test methods measure damping properties of materials

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مشاهده مقالات

Materials and Design

Aims Scope of Materials Design Modern engineered materials play a central role in enabling technological designs that underpin, advance and revolutionise engineering practice. Materials Design seeks to publish reports of materials research that present applicable advances in the insight into structure and function, and provide useable and reproducible recipes for the synthesis, preparation, characterisation, modelling and exploitation of new metallic alloys, ceramics, polymers, coatings, composites and bio-materials systems.

حوزه های تحت پوشش : عمران