PSI - Issue 40

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

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 40 (2022) 378–384

© 2022 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 scientific committee of the15th International Conference on Mechanics, Resources and Diagnostics of Materials and Structures. Abstract Two computational models of deformation are presented: one modeling aluminum matrix composite with silicon carbide reinforcement and the other modeling complexly alloyed brass. The models account for the internal material structure, as well as for the rheological properties of material constituents. Material deformation at the microscopic and macroscopic scales is simulated. Damage mechanics is shown to be applicable to simulating the fracture of both malleable and brittle constituents of materials. An empirically obtained model of the limiting plasticity of the composite matrix is used in the numerical simulations, which correlates limiting plasticity with the stress stiffness coefficient and the Lode-Nadai stress state coefficient. With brass as an example, a technique is developed that allows one to derive the dependence of the limiting strain of brittle inclusions in metal alloys on the stress stiffness coefficient. © 2022 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 scientific committee of the15th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures. Keywords: Inhomogeneous materials; numerical simulation; damage; fracture 1. Introduction Developing a hierarchical model with several structural levels of deformation and fracture in a solid body subjected to external mechanical effects enables simulations of material behavior at various scale levels. 15th International Conference on Mechanics, Resource and Diagnostics of Materials and Stru tures Numeral Simulation of Damage and Fracture in Structurally Inhomogeneous Materials Subjected to Deformation Sergey Smirnov, Marina Myasnikova* Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, 34 Komsomolskaya St., Ek terinburg, 620049, Russia Abstract Two computational models of deformation are presented: one modeling aluminum matrix composite with silicon carbide reinforce ent and the th r modeling complexly alloy d brass. The models account for the internal material structure, as well as for the rh ological pr p rties of material constituents. Material def rmation at the microscopic nd mac oscopic cal s i simulated. Damage mechan c is shown to be applicable to simu ating the fracture of both malleable and brittle c nstituent of materials. An empirically obtained model f the limiting pla ticity of the composit matrix is us d in the numerical sim lations, which correlat s limiting plast city with the str ss st ff ess coefficient and the Lod -N dai stre s state coeffici nt. W th brass as an exampl , technique is developed a allow one to deriv the depe enc of the limit ng strain of brittle nclusions in met l lloys on the s ress stiffne s co fficien . © 2022 The Author . Publi hed 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 u der responsibility of scientific committe of the15th International C ference on Mechanics, Resource and Diagnostics of Materials and S ructur s. Keywords: Inhomogeneou materials; n merical simulation; damage; fracture 1. Introduction Developing a hierarchical model with several structural levels of deformation and fracture in a solid body subject d to external me hanical effects nables sim l tions of material behavior at va ious scale levels. 15th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures Numeral Simulation of Damage and Fracture in Structurally Inhomogeneous Materials Subjected to Deformation Sergey Smirnov, Marina Myasnikova* Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, 34 Komsomolskaya St., Ekaterinburg, 620049, Russia

* Corresponding author: Tel.: +73433623027 E-mail address: marina_31076@mail.ru * Corresponding author: Tel.: +73433623027 E-mail ad ress: marina_31076@mail.ru

2452-3216 © 2022 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 scientific committee of the15th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures. 2452-3216 © 2022 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 u der re ponsibility of t scientific committe of the15th Int rnational C ference o Mechanics, Resource and Diagnostics of Mate ials and Structures.

2452-3216 © 2022 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 scientific committee of the15th International Conference on Mechanics, Resources and Diagnostics

of Materials and Structures. 10.1016/j.prostr.2022.04.051