PSI - Issue 32

ScienceDirect Structural Integrity Procedia 00 (2021) 000–000 Structural Integrity Procedia 00 (2021) 000–000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com Sc i enceDi r ect Available online at www.sciencedirect.com Sc i enceDi r ect

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

Procedia Structural Integrity 32 (2021) 246–252

© 2021 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 the XXIIth Winter School on Continuous Media Mechanics” Abstract The specifics of application of the topological optimization process to the random cellular biomimetic structures created on the basis of morphological composition of the natural materials are considered in this paper. An approach to morphology optimization of representative volumes elements (RVEs) of cellular polymeric 3D printed samples with a random structure depending on loading conditions with respect to specified stiffness requirements has been implented. A problem definition is given for the investigation of the effect of topological optimization on porous cellular structures, with different volume fractions of matrix material. A comparative analysis of the characteristics of finite element models before and after the optimization process was performed. © 2021 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 the XXIIth Winter School on Continuous Media Mechanics” Keywords: Biomimetic materials, random cellular structures, topology optimization, finite element method. 1. Introduction Biomimetic materials are created by imitating the structure, interfacial boundaries, and synthesis process of natural materials. An attractive feature of natural materials is their versatility and ability to adapt to different conditions. Most advances in engineering design depend on the development of technological tools and an increasing variety of materials (A.R. Parkinson, R.J. Balling, 2013; G. et al., 1992). Recent achievements in additive manufacturing have further enabled the design and synthesis of a wide range of architected materials with unprecedented mechanical, thermal and acoustic properties (Ashby, 2013; Brechet and Embury, 2013). These novel Abstract The specifics of application of the topological optimization process to the random cellular biomimetic structures created on the basis of morphological composition of the na ural materials are considered in this paper. An approach to morphology opt mization of representative volumes eleme ts (RVEs) of cellular polymeric 3D printed samples with a rando structure depending on loading cond tions with respect to specified stiffness equire ents has been implent d. A problem definition is giv for the investigati of the effect of topol gical optimization on porous cellular structures, wi h different volum fraction of matrix material. A c mparative analysis f the characteris cs f finite el ment models before and after the optimization process was performed. © 2021 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 scientific committe of the XXIIth Winter School on Continuous Media Mechanics” K ywords: Biomimetic materials, random cellular structures, topology optimization, finite element method. 1. Introduction Biomimetic materials are created by imitating the structure, interfacial boundaries, and synthesis process of natural materials. An attr ctive feature of n ural materials is their versatility and ability to adapt to different conditions. Most advances n engine ring design depend on development of technol gical ools and an increasi g variety of materials (A.R. Parki son, R.J. Balling, 2013; G. et al., 1992). Recent achievements in additive manufacturing have further enabled the design and synthesis of a wide range of architect d materials with unprecedented mechanical, th rma and acoust c properties (A hby, 2013; Brechet and Embury, 2013). These novel XXIIth Winter School on Continuous Media Mechanics Topology Optimization of Biomimetic Cellular Polymeric Materials with Random Structure Based on Strain Energy Daria Dolgikh a , Mikhail Tashkinov a * XXIIth Winter School on Continuous Media Mechanics Topology Optimization of Biomimetic Cellular Polymeric Materials with Random Structure Based on Strain Energy Daria Dolgikh a , Mikhail Tashkinov a * a Perm National Research Polytechnic University, Komsomoslky Ave. 29, Perm 614990, Russia a Perm National Research Polytechnic University, Komsomoslky Ave. 29, Perm 614990, Russia

* Corresponding author. E-mail address: m.tashkinov@pstu.ru * Corresponding author. E-mail ad ress: m.tashkinov@pstu.ru

2452-3216 © 2021 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 the XXIIth Winter School on Continuous Media Mechanics” 2452-3216 © 2021 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 responsibility of t scientific committe of the XXIIth Winter School on Continuous Media Mechanics”

2452-3216 © 2021 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 the XXIIth Winter School on Continuous Media Mechanics” 10.1016/j.prostr.2021.09.035