20.500.12556/RUL-139027 New methodology of dynamical material response of dissimilar FSWed Al alloy joint under high strain rate laser shock loading This paper presents an innovative methodology of material characterization under high strain rate (order of 10$^7$s$^{–1}$) laser shock loading coupled with microstructural and mechanical material features. To that scope, experimental and simulation analyses have been conducted for Al alloys (AA7075-T6 and AA2017-T4) and dissimilar Friction Stir Welded (FSWed) AA7075-AA2017 joint, under shock pressure of 4.5 GPa (laser power density of 3.5 GW/cm$^2$). In order to perform proper in-depth material model simulation of these alloys and dissimilar pairs, Johnson–Cook (J-C) material model has been coupled with Grüneisen equation of state using the non-linear explicit code LS-DYNA. For the first time, we provided a way to differentiate between material behaviour in the cross-section and the in-plane rolling and welding direction. What is more, we have provided the link between microstructural features and mechanical properties such as microhardness, residual stresses and the identified material parameters. By achieving this goal, the bigger difference between studied planes was confirmed for strain hardening modulus, strain hardening exponent and strain rate sensitivity parameters. Obtained results and proposed methodology indicate high potential to predict material properties and behaviour of dynamically stressed parts and at the same time can be used for optimization of LSP process. friction stir welding FSW dissimilar Al alloys laser induced shock wave propagation VISAR analysis dynamic simulation varjenje s trenjem in mešanjem raznorodne aluminijeve zlitine laserski udarni valovi VISAR analize dinamične simulacije true false true Angleški jezik Slovenski jezik Članek v reviji 2022-08-29 08:54:11 2022-08-29 08:54:15 2022-09-15 04:17:40 0000-00-00 00:00:00 2022 0 0 15 str. Vol. 222, art. 111080 Oct. 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.791.1:699.715 0264-1275 10.1016/j.matdes.2022.111080 118983939 Ayad_...-_New_methodology_of_dynamical_material_response_of_dissimilar_FSWed_Al_alloy_joint_under_high_strain_rate_laser_shock_loading.pdf Ayad_...-_New_methodology_of_dynamical_material_response_of_dissimilar_FSWed_Al_alloy_joint_under_high_strain_rate_laser_shock_loading.pdf 1 F8308001774D6AADAE0DA8ED3BAEF562 8c458bffc7edfb2c40a53f367b37db2eafa105c1e3060e94de6a40a01c511540 470f5524-2769-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=159533 https://www.sciencedirect.com/science/article/pii/S026412752200702X 1 5dc95280-2767-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=159532 Fakulteta za strojništvo 0 0 0