PSI - Issue 47

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 47 (2023) 213–218

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IGF27 chairpersons Abstract Method of numerical simulation of laser induced shock wave loading of metals and alloys has been carried out. The model of a solid with mesoscopic defects is used to describe the deformation behavior and fracture of zirconium plane target under condition of shock wave propagation. The problem was solved numerically in an axisymmetric formulation by the finite element method. Different variants of the loading conditions are considered. The conditions of spall fracture are analyzed. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) 1. Introduction Laser shock peening is one of the promising methods of surface treatment of materials hardening. This method makes to avoid the effect of heating of the near-surface layers, which is very important for materials with a unique structure due to the absence of recrystallization processes that level out the previous thermomechanical treatment. The nanosecond shock-wave loads initiated by laser radiation is accompanied by structural-phase transitions and a change in the surface topography (Kolobov (2022)). This procedure allows one obtaining unique physical and mechanical characteristics in narrow areas of the material, which increases the strength and resistance to fatigue failure. An undesirable effect that can occur during shock-wave loading using a laser is spall fracture (Saveleva 27th International Conference on Fracture and Structural Integrity (IGF27) Mathematical modeling of the behavior of metals and alloys under shock-wave loading Dmitry Ledon a, *, Yuriy Bayandin a , Sergey Uvarov a , Alexander Balakhnin a , Oleg Naimark a a Institute of Continuous Media Mechanics of Ural branch of RAS, 1, Ac. Koroleva str., Perm 614013, Russia Peer-review under responsibility of the IGF27 chairpersons Keywords: shock-waves, laser shock peening, numerical simulation

* Corresponding author. Tel.: +7-342-2378-312. E-mail address: ledon@icmm.ru

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IGF27 chairpersons

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IGF27 chairpersons 10.1016/j.prostr.2023.07.014