Investigation of dynamic characteristics of carbon composites by laser Doppler vibrometry

Vladimir A. Krasnoveikin, Ivan S. Konovalenko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Using a laser Doppler vibrometer, a noncontact measurement of the damping factor and vibration velocity of a rectangular, cantilevered carbon composite specimen under conditions of vibration load of varying intensity is carried out. The range of loading rates is 0-255 mm/s. It has been found that, as the loading rate increases to 5 mm/s, the value of the damping factor decreases nonlinearly, and, for larger values, it fluctuates near a certain constant value. With the approach of the scanning point of the sample to the place where it is fixed, the damping factor increases. It is shown that there is a certain distance from the place where the sample is fixed, for which an increase in the intensity of the applied vibrational load causes the smallest increase in the maximum value of vibration velocity.

Original languageEnglish
Title of host publicationMechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2018
Subtitle of host publicationProceedings of the 12th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures
EditorsSunder Ramasubbu, Eduard S. Gorkunov, Victor E. Panin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417816
DOIs
Publication statusPublished - 19 Dec 2018
Event12th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2018 - Ekaterinburg, Russian Federation
Duration: 21 May 201825 May 2018

Publication series

NameAIP Conference Proceedings
Volume2053
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference12th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2018
CountryRussian Federation
CityEkaterinburg
Period21.5.1825.5.18

    Fingerprint

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Krasnoveikin, V. A., & Konovalenko, I. S. (2018). Investigation of dynamic characteristics of carbon composites by laser Doppler vibrometry. In S. Ramasubbu, E. S. Gorkunov, & V. E. Panin (Eds.), Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2018: Proceedings of the 12th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures [040047] (AIP Conference Proceedings; Vol. 2053). American Institute of Physics Inc.. https://doi.org/10.1063/1.5084485