Analysis of the Generation of Vibration Signals under Uniaxial Loading of Materials Using the Coherent Properties of Laser Radiation

Simple item page
dc.contributor.authorLouda, Petr
dc.contributor.authorSharko, Artem
dc.date.accessioned2020-04-28T14:01:27Z
dc.date.available2020-04-28T14:01:27Z
dc.date.issued2020
dc.description.abstractThe present article describes the results of theoretical and experimental investigations of the force response of materials to external tensile stresses. The method used is based on remote precision measurements of the amplitudes of the harmonics of vibration signals and synchronous fixation of deformations under load. It was determined that the shape of the propagating acoustic signal depends not only on the bias time, but also on the frequency. In addition, fixation of the moments of occurrence of the vibrational signals and determination of the number of excesses in the amplitudes of harmonics over the discrimination level allows structural models to be studied in order to diagnose the strength properties of materials under dynamic loading of solids. The experimental setup consisted of a P100 Labtest-2 tearing machine providing a loading speed of 6.22 mm/min, a Polytech PSV–400 vibrometer including lasers, and a computer. Measurements were made at frequencies of 0.4, 1.6, and 40 kHz. An analysis of the mathematical models of the occurrence and propagation of acoustic signals in a material under load is presented, and the features of their application are reported. Transferring the moments of occurrence of vibrational signals to a strain diagram from the applied load allows the development of physical processes of hardening and destruction of materials to be traced. The occurrence of vibrational signals under load can be used as an information parameter for the diagnosis of developing defects in the structure of materials under load.cs
dc.format.extent21 strancs
dc.identifier.doi10.3390/ma13092046
dc.identifier.orcid0000-0002-0426-2943 Louda, Petr
dc.identifier.urihttps://dspace.tul.cz/handle/15240/154768
dc.identifier.urihttps://www.mdpi.com/1996-1944/13/9/2046
dc.language.isocscs
dc.publisherMDPI
dc.relation.ispartofMaterials 2020
dc.subjectlaser vibrometrycs
dc.subjecttensile diagramcs
dc.subjectinformation processingcs
dc.subjectdiscrimination levelscs
dc.subjectFourier transformcs
dc.titleAnalysis of the Generation of Vibration Signals under Uniaxial Loading of Materials Using the Coherent Properties of Laser Radiationcs
local.accessopen access
local.identifier.publikace7669
local.relation.issue9
local.relation.volume13
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Analysis of the Generation of Vibration Signals.pdf
Size:
1.74 MB
Format:
Adobe Portable Document Format
Description:
článek
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections