Details
| Original language | English |
|---|---|
| Pages (from-to) | 431-443 |
| Number of pages | 13 |
| Journal | Composites Part B: Engineering |
| Volume | 155 |
| Publication status | Published - 15 Sept 2018 |
| Externally published | Yes |
Abstract
As fiber- and braid-reinforced polymer components exhibit a vast number of additional design parameters compared to components made of monolithic materials, simulation methods are indispensable in the design and optimization process, accompanying or substituting experimental approaches. In respect thereof, we present a multi-scale approach comprising three observation scales: (i) the yarn scale considering fibers embedded in polymer, (ii) the braid scale capturing interwoven yarns, and (iii) the component scale. Information from one scale is transferred to the next higher scale by means of effective properties determined by finite element analysis of repetitive unit cell (RUC) models, subsequently applied for the determination of elastic properties on the yarn and braid scale. The depicted procedure allows the consideration of different types of braids (balanced and unbalanced regular braids) exhibiting arbitrary braid angles. Therefrom obtained effective properties enter the numerical model of the respective structural component. Finally, the multi-scale model is applied to the analysis of braid-reinforced polymer coil springs highlighting the potential of the proposed numerical approach. The obtained simulation results show excellent agreement with the respective experimental measurements and provide – additionally – insight into the stress distribution/loading within the coil as well as the sensitivity of design parameters with respect to the spring performance.
Keywords
- Braid-reinforced composites, Coil springs, Multi-scale modeling, Repetitive unit cell
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Composites Part B: Engineering, Vol. 155, 15.09.2018, p. 431-443.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - RUC-based multi-scale model for braid-reinforced polymers
T2 - Application to coil springs
AU - Luger, Marc
AU - Traxl, Roland
AU - Hofer, Ulrich
AU - Hirzinger, Benjamin
AU - Lackner, Roman
N1 - Funding Information: This research was funded by the K-Regio project "Innovative Tube Design - Entwicklung und Optimierung von neuen High-Tech Faserverbundstrukturen für den industriellen Einsatz auf Basis modell-und simulationsbasierter Methoden" in cooperation with Thöni Industriebetriebe GmbH, superTEX composites GmbH, and Intales GmbH. Financial support by the Tyrolean Government , the European Regional Development Fund (ERDF) and the University of Innsbruck is gratefully acknowledged.
PY - 2018/9/15
Y1 - 2018/9/15
N2 - As fiber- and braid-reinforced polymer components exhibit a vast number of additional design parameters compared to components made of monolithic materials, simulation methods are indispensable in the design and optimization process, accompanying or substituting experimental approaches. In respect thereof, we present a multi-scale approach comprising three observation scales: (i) the yarn scale considering fibers embedded in polymer, (ii) the braid scale capturing interwoven yarns, and (iii) the component scale. Information from one scale is transferred to the next higher scale by means of effective properties determined by finite element analysis of repetitive unit cell (RUC) models, subsequently applied for the determination of elastic properties on the yarn and braid scale. The depicted procedure allows the consideration of different types of braids (balanced and unbalanced regular braids) exhibiting arbitrary braid angles. Therefrom obtained effective properties enter the numerical model of the respective structural component. Finally, the multi-scale model is applied to the analysis of braid-reinforced polymer coil springs highlighting the potential of the proposed numerical approach. The obtained simulation results show excellent agreement with the respective experimental measurements and provide – additionally – insight into the stress distribution/loading within the coil as well as the sensitivity of design parameters with respect to the spring performance.
AB - As fiber- and braid-reinforced polymer components exhibit a vast number of additional design parameters compared to components made of monolithic materials, simulation methods are indispensable in the design and optimization process, accompanying or substituting experimental approaches. In respect thereof, we present a multi-scale approach comprising three observation scales: (i) the yarn scale considering fibers embedded in polymer, (ii) the braid scale capturing interwoven yarns, and (iii) the component scale. Information from one scale is transferred to the next higher scale by means of effective properties determined by finite element analysis of repetitive unit cell (RUC) models, subsequently applied for the determination of elastic properties on the yarn and braid scale. The depicted procedure allows the consideration of different types of braids (balanced and unbalanced regular braids) exhibiting arbitrary braid angles. Therefrom obtained effective properties enter the numerical model of the respective structural component. Finally, the multi-scale model is applied to the analysis of braid-reinforced polymer coil springs highlighting the potential of the proposed numerical approach. The obtained simulation results show excellent agreement with the respective experimental measurements and provide – additionally – insight into the stress distribution/loading within the coil as well as the sensitivity of design parameters with respect to the spring performance.
KW - Braid-reinforced composites
KW - Coil springs
KW - Multi-scale modeling
KW - Repetitive unit cell
UR - http://www.scopus.com/inward/record.url?scp=85053767685&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2018.09.020
DO - 10.1016/j.compositesb.2018.09.020
M3 - Article
AN - SCOPUS:85053767685
VL - 155
SP - 431
EP - 443
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
SN - 1359-8368
ER -