Experimental investigation of shock wave pressure induced by a ns laser pulse under varying confined regimes

Joanna Radziejewska , Marek Strzelec , Roman Ostrowski , A. Sarzyński

Abstract

The article presents a study of shock waves induced by a nanosecond laser pulse in samples in the form of steel plates. Its contents include a description of the measurement system, methods of calculations and some characteristics of the measuring instruments and materials used. The quoted formulas enabled the processing of recorded measurement signals. The influence of material used as a confining layer (glass, PMMA - Plexiglass, water) and substrate (PMMA, aluminium, steel) on the amplitude and shape of recorded pressure waves was studied. Pressure behind the shock wave measurements were conducted using piezoelectric polymer PVDF (polivinylidene fluoride) sensors. Verifications of PVDF results were conducted by the measurements of velocity of back sample surface by VISAR (Velocity Interferometer System for Any Reflector). A qualitative compliance between the PVDF's pressure and VISAR's velocity rescaled to pressure was achieved. The strains (about 0.3%) and strain rates (about 3 × 105 1/sec) were evaluated. The obtained results will allow for a better selection of test conditions for studying material properties by using a shock wave induced by the laser pulse.

Author Joanna Radziejewska (FPE / IoMP)
Joanna Radziejewska,,
- The Institute of Manufacturing Processes
, Marek Strzelec - Institute of Optoelectronics, Military University of Technology (IOE) [Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego (WAT)] [Wojskowa Akademia Techniczna]
Marek Strzelec,,
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, Roman Ostrowski - Institute of Optoelectronics, Military University of Technology (IOE) [Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego (WAT)] [Wojskowa Akademia Techniczna]
Roman Ostrowski,,
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, A. Sarzyński - [Wojskowa Akademia Techniczna]
A. Sarzyński,,
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Journal seriesOptics and Lasers in Engineering, ISSN 0143-8166, e-ISSN 1873-0302
Issue year2020
Vol126
Pages1-12
Publication size in sheets0.55
ASJC Classification2208 Electrical and Electronic Engineering; 2210 Mechanical Engineering; 2504 Electronic, Optical and Magnetic Materials; 3107 Atomic and Molecular Physics, and Optics
DOIDOI:10.1016/j.optlaseng.2019.105913
Languageen angielski
File
1-s2.0-S0143816619308334-main.pdf 3.03 MB
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 05-02-2020, ArticleFromJournal
Publication indicators Scopus Citations = 0; WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.874; WoS Impact Factor: 2018 = 4.059 (2) - 2018=3.486 (5)
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