Details
Original language | English |
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Article number | 100350 |
Journal | Composites Part C: Open Access |
Volume | 10 |
Early online date | 9 Feb 2023 |
Publication status | Published - Mar 2023 |
Abstract
In this paper, a 3D finite element modelling approach is presented to assess the effects of manufacturing defects within composite structures. The mesoscale modelling approach derives the stress-strain response of a composite structure from a representative structural element. A set of tensile and bending loads is used to compute its ABD-Matrix. The boundary conditions of the model are described in detail as is the extraction of the strain and curvature response. The derived stiffness from the presented modelling approach is compared to the classical lamination theory and the models' shortcomings are discussed. Finally, the influence of a gap, an overlap and two different-sized fuzzballs on the macroscopic mechanical properties of a composite structure are evaluated using the presented multiscale modelling approach, thereby providing stiffness matrices influenced by the defects for the use in global models of composite parts.
Keywords
- Automated fibre placement, Carbon fibre-reinforced polymer, Effects of defects, Multiscale simulation
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Composites Part C: Open Access, Vol. 10, 100350, 03.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Representative structural element approach for assessing the mechanical properties of automated fibre placement-induced defects
AU - Friedel, Andreas
AU - Heimbs, Sebastian
AU - Horst, Peter
AU - Schmidt, Carsten
AU - Timmermann, Marc
N1 - Funding Information: The authors would like to acknowledge the financial support by Deutsche Forschungsgemeinschaft (DFG – German Research Foundation) granted for the research project ‘EDD – Effects of Detectable Defects’ (project number 413627151 ).
PY - 2023/3
Y1 - 2023/3
N2 - In this paper, a 3D finite element modelling approach is presented to assess the effects of manufacturing defects within composite structures. The mesoscale modelling approach derives the stress-strain response of a composite structure from a representative structural element. A set of tensile and bending loads is used to compute its ABD-Matrix. The boundary conditions of the model are described in detail as is the extraction of the strain and curvature response. The derived stiffness from the presented modelling approach is compared to the classical lamination theory and the models' shortcomings are discussed. Finally, the influence of a gap, an overlap and two different-sized fuzzballs on the macroscopic mechanical properties of a composite structure are evaluated using the presented multiscale modelling approach, thereby providing stiffness matrices influenced by the defects for the use in global models of composite parts.
AB - In this paper, a 3D finite element modelling approach is presented to assess the effects of manufacturing defects within composite structures. The mesoscale modelling approach derives the stress-strain response of a composite structure from a representative structural element. A set of tensile and bending loads is used to compute its ABD-Matrix. The boundary conditions of the model are described in detail as is the extraction of the strain and curvature response. The derived stiffness from the presented modelling approach is compared to the classical lamination theory and the models' shortcomings are discussed. Finally, the influence of a gap, an overlap and two different-sized fuzzballs on the macroscopic mechanical properties of a composite structure are evaluated using the presented multiscale modelling approach, thereby providing stiffness matrices influenced by the defects for the use in global models of composite parts.
KW - Automated fibre placement
KW - Carbon fibre-reinforced polymer
KW - Effects of defects
KW - Multiscale simulation
UR - http://www.scopus.com/inward/record.url?scp=85147910358&partnerID=8YFLogxK
U2 - 10.1016/j.jcomc.2023.100350
DO - 10.1016/j.jcomc.2023.100350
M3 - Article
AN - SCOPUS:85147910358
VL - 10
JO - Composites Part C: Open Access
JF - Composites Part C: Open Access
SN - 2666-6820
M1 - 100350
ER -