izpis_h1_title_alt

Transition from 1D to 2D laser-induced ultrasonic wave propagation in an extended plate
ID Laloš, Jernej (Author), ID Požar, Tomaž (Author), ID Možina, Janez (Author)

.pdfPDF - Presentation file, Download (1,73 MB)
MD5: 4216BFAE63AFEFDE529D3E9D5D0183F2
URLURL - Source URL, Visit http://link.springer.com/article/10.1007/s10765-016-2056-y This link opens in a new window

Abstract
Optodynamic interaction between a laser pulse and the surface of an opaque, solid elastic object produces transient waves that propagate and reverberate within the object. They can be, in general, categorized into three distinctive types which are all formed through different mechanisms: ablation-induced waves, light-pressure-induced waves, and thermoelastic waves. In this paper, out-of-plane displacements of such waves are simulated at the epicentral position on the opposite side of an extended plane-parallel elastic plate. Wave propagation is mathematically described by Greenʼs transfer functions convolved with suitable time profiles of the incoming laser pulses. The simulated size of the circularly symmetric laser-illuminated area on the plate surface is varied to show the limit-to-limit transition of the displacement waveforms: from a 2D point source to an infinite 1D source.

Language:English
Keywords:ablation, elastic waves, laser-induced ultrasound, optodynamics, radiation pressure, thermoelasticity
Work type:Article (dk_c)
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Year:2016
Publication status in journal:Published
Article version:Postprint, final article version, accepted into publication
Number of pages:Str. 1-10
Numbering:Vol. 37, iss. 5
UDC:535(045)
ISSN on article:0195-928X
DOI:10.1007/s10765-016-2056-y This link opens in a new window
COBISS.SI-ID:14568475 This link opens in a new window
Publication date in RUL:30.11.2018
Views:763
Downloads:535
Metadata:XML RDF-CHPDL DC-XML DC-RDF
:
Share:AddThis
AddThis uses cookies that require your consent. Edit consent...

Secondary language

Language:Slovenian
Title:Prehod iz 1D v 2D lasersko induciranega širjenja ultrazvočnih valov v široki plošči
Abstract:
Optodinamska interakcija med laserskim bliskom in površino neprozornega trdnega elastičnega predmeta povzroči prehodne valove, ki se širijo in zvenijo znotraj predmeta. V splošnem se jih lahko razdeli na tri značilne vrste, ki se razlikujejo glede na mehanizem nastanka: ablacijsko inducirane valove, valove povzročene s svetlobnim tlakom in termoelastične valove. V tem članku so simulirani izvenravninski pomiki takih valov v epicentralnem položaju na nasprotni površini široke planparalelne elastične plošče. Širjenje valovanja se matematično opiše s konvolucijo Greenove prenosne funkcije z ustreznim časovnim potekom vpadlega laserskega bliska. Pri tem se simulirana velikost vpadnega območja krožno simetričnega laserskega bliska na površini plošče spreminja, s čimer je prikazan prehod valovnih oblik iz ene limite drugo: iz 2D točkastega vira v neskončen 1D vir.

Keywords:odvzemanje snovi, elastični valovi, lasersko povzročen ultrazvok, optodinamika, sevalni tlak, termoelastičnost

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project number:P2-0392
Name:Optodinamika

Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:

Back