PSI - Issue 54

ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ^ĐŝĞŶĐĞ ŝƌĞĐƚ Available online at www.sciencedirect.com ^ĐŝĞŶĐĞ ŝƌĞĐƚ

www.elsevier.com/locate/procedia

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Procedia Structural Integrity 54 (2024) 437–445

© 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 scientific committee of the ICSI 2023 organizers Abstract The rapid advancement of manufacturing techniques and the design of new materials and structures in the engineering sector has piqued the interest of industry and scientific research. Carbon fiber-reinforced polymer (CFRP) elements created using AM techniques outperform printed samples made of pure polymers. In terms of the real-world application of these printed materials, such elements can be exposed to a variety of environmental factors, with temperature influence being one of the most common. The temperature has a strong influence on the matrix material used to join CFRP components, resulting in a reduction in material strength. The goal of the present study is to perform multiscale modeling of unidirectional (UD) CFRP composite manufactured with the FDM method under various thermal loadings. The simulation will be performed using finite element method (FEM) at the micro and macroscale. Abaqus software is the main tool for FEM modeling. The reinforcement material used is continuous carbon fiber (CCF) while thermoplastic PLA is used as matrix material. The simulation consists of homogenized orthotropic elastic moduli, coefficient of thermal expansion (CTE), and cure-shrinkage strain of the lamina, a microscopic structure generation based on unit cell or representative volume element (RVE) was performed. Ultimately, deformation and degradation of mechanical properties was predicted by macroscopic FEM using the homogenized method obtained from the microscale. The material’s behavior such as stiffness and elastic modulus are compared for several thermal groups: intact (without thermal loading), continuous, and cyclic temperatures. The obtained numerical results from the multiscale simulation are then validated with the experimental results. Abstract The rapid advancement of manufacturing techniques and the design of new materials and structures in the engineering sector has piqued the interest of industry and scientific research. Carbon fiber-reinforced polymer (CFRP) elements created using AM techniques outperform printed samples made of pure polymers. In terms of the real-world application of these printed materials, such elements can be exposed to a variety of environmental factors, with temperature influence being one of the most common. The temperature has a strong influence on the matrix material used to join CFRP components, resulting in a reduction in material strength. The goal of the present study is to perform multiscale modeling of unidirectional (UD) CFRP composite manufactured with the FDM method under various thermal loadings. The simulation will be performed using finite element method (FEM) at the micro and macroscale. Abaqus software is the main tool for FEM modeling. The reinforcement material used is continuous carbon fiber (CCF) while thermoplastic PLA is used as matrix material. The simulation consists of homogenized orthotropic elastic moduli, coefficient of thermal expansion (CTE), and cure-shrinkage strain of the lamina, a microscopic structure generation based on unit cell or representative volume element (RVE) was performed. Ultimately, deformation and degradation of mechanical properties was predicted by macroscopic FEM using the homogenized method obtained from the microscale. The material’s behavior such as stiffness and elastic modulus are compared for several thermal groups: intact (without thermal loading), continuous, and cyclic temperatures. The obtained numerical results from the multiscale simulation are then validated with the experimental results. International Conference on Structural Integrity 2023 (ICSI 2023) Numerical modeling of thermal effects on the mechanical behavior of additive manufactured continuous carbon fiber reinforced polymer : From microscale to macroscale International Conference on Structural Integrity 2023 (ICSI 2023) Numerical modeling of thermal effects on the mechanical behavior of additive manufactured continuous carbon fiber reinforced polymer : From microscale to macroscale Isyna Izzal Muna*, Magdalena Mieloszyk Institute of Fluid-flow Machinery, Fiszera 14 80-231, Gdansk, Poland Isyna Izzal Muna*, Magdalena Mieloszyk Institute of Fluid-flow Machinery, Fiszera 14 80-231, Gdansk, Poland

* Corresponding author. Tel: +48 58 5225 298 E-mail address: imuna@imp.gda.pl * Corresponding author. Tel: +48 58 5225 298 E-mail address: imuna@imp.gda.pl

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 scientific committee of the ICSI 2023 organizers 10.1016/j.prostr.2024.01.104 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 scientific committee of the ICSI 2023 organizers 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 scientific committee of the ICSI 2023 organizers