PSI - Issue 32

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2021) 000–000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2021) 000–000

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Procedia Structural Integrity 32 (2021) 334–339

© 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 Mechanical properties of layered polyetheretherketone (PEEK) based composites reinforced with continuous carbon fibres and carbon fabric, were investigated using numerical simulation. A model of a composite was developed taking into account the initial discontinuities and delamination between the binder and fibres arising under loading. With the help of the model, the effect of discontinuities and delamination on the strength properties of PEEK-based composites under different stress states was studied. Corresponding quantitative estimates were obtained. A model was also developed to determine the properties of composites reinforced with carbon fibres and carbon fabric under three-point bending taking into account different fibre layout patterns. It is shown that with increasing adhesion level and a contact area between fibres and the matrix, the flexural strength of composites enlarged by several times. 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: Mechanical properties; of layered composites; discontinuities; delamination; carbon fibers; carbon fabric; numerical simulation reinforced with carbon fibers Bochkareva S. A. a , Panin S. V. a,b, * a Institute of Strength Physics and Materials Science Siberian Branch of Russian Academy of Sciences, Akademicheskiy pr. 2/4, Tomsk, 634055, Russian Federation b National Research Tomsk Polytechnic University, L nin pr.30, Tomsk, 634050, Russian Federation Abstract Mechanical properties of layered polyetheretherketone (PEEK) based composites reinforced with continuous carbon fibres and carbon fabric, were investigat d using num rical simulation. A mod l of a c mposite was developed taking i to cc unt the initial discontinuities a d delam n tion between the binder and fibre arising und r loa ing. With the help f the model, the effect of di co tinuities and delamination on the strength propert es of PEEK-based composites under different str ss sta es wa studied. Corresponding qua titativ estimates were obtained. A mod l was al o develope to d termine the properties of composites re forced with carbon fibres and carbon fabric under three-p int b nding taking into account different fibre layout patterns. It is s own that with i cre sing adhesio lev l and a co tact area between fibres and th matrix, the flexural strength of composites enla ged by sev ral times. 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 committe of t e XXIIth Winter Sch ol on Continuous Media Mechanics” K ywords: Mechanical proper ies; of layered composites; discontinuities; delamination; carbon fibers; carbon fabri ; numerical simulation XXIIth Winter School on Continuous Media Mechanics Effect of adhesion on mechanical properties of polyetheretherketone based laminated composites XXIIth Winter School on Continuous Media Mechanics Effect of adhesion on mechanical properties of polyetheretherketone based laminated composites reinforced with carbon fibers Bochkareva S. A. a , Panin S. V. a,b, * a Institute of Strength Physics and Materials Science Siberian Branch of Russian Academy of Sciences, Akademicheskiy pr. 2/4, Tomsk, 634055, Russian Federation b National Research Tomsk Polytechnic University, Lenin pr.30, Tomsk, 634050, Russian Federation

* Corresponding author. Tel.: 7-382-228-8904 E-mail address: svp@ispms.ru * Corresponding author. Tel.: 7-382-228-8904 E-mail ad ress: svp@ispms.ru

2452-3216 © 2020 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 © 2020 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 t e XXIIth Winter School n 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.2021.09.048