20.500.12556/RUL-135511 Modeling of multi-edge effects in the case of laser shock loadings applied on thin foils application for material characterization of aluminum alloys This article presents the study of the shock wave propagation through aluminum alloys (pure aluminum and aluminum 2024-T3) produced by laser plasma using experimental and numerical tests. Water confinement regime interaction, pulse duration (7.2 ns), and power density (1–5 GW/cm$^2$) range correspond to laser shock peening process configuration and parameters. To that scope, we simulate the shock wave propagation using non-linear explicit code LS-DYNA, which we validate with experimental results. Thereupon, we present a descriptive analysis that links separately the material model and loading conditions to the dynamic response of aluminum alloys under high strain rate laser shock by coupling the Johnson-Cook (J-C) material model with the Grüneisen equation of state (MAT_015 and EOS_GRUNEISEN accordingly). In addition, we make use of stress propagation into target thickness to analyze the origin of different points on the Back Face Velocity (BFV) profile during shock propagation. Finally, we provide evidence that 2D compressive effects do not depend only on the focal spot size or target thickness such as the edge effects but also on power density and material initial yield strength. aluminum alloys laser shock waves numerical simulation Johnson-Cook model equations of state wave mechanics alloys mechanical stress material characterization methods laser peening plasmas shock waves aluminijeve zlitine laserski udarni valovi numerične simulacije Johnson-Cookov model true false true Angleški jezik Slovenski jezik Članek v reviji 2022-03-17 08:36:54 2022-03-17 08:36:55 2025-05-14 16:04:51 0000-00-00 00:00:00 2022 0 0 17 str. iss. 9, art. 095902 Vol. 131 Mar. 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.1:669:519.62 0021-8979 10.1063/5.0080326 101162243 095902_1_online.pdf 095902_1_online.pdf 1 22C846BCEDE3E34BA2726F7A92E9289B d6fa697c42df95cdb440d3bafc564489c2091c7e1688b0d7e9cc356592ba4050 ef330b3c-1acc-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=208540 https://pubs.aip.org/aip/jap/article/131/9/095902/2836654/Modeling-of-multi-edge-effects-in-the-case-of 0 89876e1b-30c7-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=210331 Fakulteta za strojništvo 0 0 0