Details
| Original language | English |
|---|---|
| Title of host publication | ECCM 2018 - 18th European Conference on Composite Materials |
| ISBN (electronic) | 9781510896932 |
| Publication status | Published - 2020 |
| Event | 18th European Conference on Composite Materials, ECCM 2018 - Athens, Greece Duration: 24 Jun 2018 → 28 Jun 2018 |
Abstract
The project “Multi-Layer Inserts” (MLI) proposes a new design for inserts used in thin-walled structures made of carbon fiber reinforced plastic (CFRP). The proposed insert consists of multiple thin metal sheets and is build up simultaneously with the laminate in a fully automated intrinsic hybridization process, eliminating time-consuming post-processing steps. Furthermore, such inserts significantly increase the bonding area between metal and CFRP in comparison to conventional inserts at equal weight. This results in a significant increase of the loads that can be transmitted into the CFRP. The individual material layers of the local CFRP-metal-hybrid (CFRP, metal, adhesive) are very thin and form a multitude of adhesive connections. Prior investigations have shown advantages of octagonal shaped metal inserts in reducing strain concentrations. The present work discusses a simplification methodology to investigate the MLI's dependence on and sensitivity to design parameters by dividing the model of the complex adhesive connection into combinations of common lap joints. After proving the transferability of the lap joint approach for very thin laminates, a comparison of the experimentally measured surface strain distribution near an octagonal MLI is used to assess the quality of the approximation.
Keywords
- Embedded load introduction, Fiber-metal laminate, Insert, Joints
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
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ECCM 2018 - 18th European Conference on Composite Materials. 2020.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Numerical investigation of a layered hybrid load introduction element for thin-walled CFRP structures
AU - Herwig, Alexander
AU - Schmidt, Carsten
AU - Horst, Peter
N1 - Funding Information: This paper is based on investigations of the subproject 1 – ‘Multilayer Inserts – intrinsic hybrid compounds for load introduction into thin walled high-performance CFRP-Structures’ of the priority program 1712 ‘Intrinsic hybrid composites for lightweight load-bearings’, which is kindly supported by the German Research Foundation (DFG).
PY - 2020
Y1 - 2020
N2 - The project “Multi-Layer Inserts” (MLI) proposes a new design for inserts used in thin-walled structures made of carbon fiber reinforced plastic (CFRP). The proposed insert consists of multiple thin metal sheets and is build up simultaneously with the laminate in a fully automated intrinsic hybridization process, eliminating time-consuming post-processing steps. Furthermore, such inserts significantly increase the bonding area between metal and CFRP in comparison to conventional inserts at equal weight. This results in a significant increase of the loads that can be transmitted into the CFRP. The individual material layers of the local CFRP-metal-hybrid (CFRP, metal, adhesive) are very thin and form a multitude of adhesive connections. Prior investigations have shown advantages of octagonal shaped metal inserts in reducing strain concentrations. The present work discusses a simplification methodology to investigate the MLI's dependence on and sensitivity to design parameters by dividing the model of the complex adhesive connection into combinations of common lap joints. After proving the transferability of the lap joint approach for very thin laminates, a comparison of the experimentally measured surface strain distribution near an octagonal MLI is used to assess the quality of the approximation.
AB - The project “Multi-Layer Inserts” (MLI) proposes a new design for inserts used in thin-walled structures made of carbon fiber reinforced plastic (CFRP). The proposed insert consists of multiple thin metal sheets and is build up simultaneously with the laminate in a fully automated intrinsic hybridization process, eliminating time-consuming post-processing steps. Furthermore, such inserts significantly increase the bonding area between metal and CFRP in comparison to conventional inserts at equal weight. This results in a significant increase of the loads that can be transmitted into the CFRP. The individual material layers of the local CFRP-metal-hybrid (CFRP, metal, adhesive) are very thin and form a multitude of adhesive connections. Prior investigations have shown advantages of octagonal shaped metal inserts in reducing strain concentrations. The present work discusses a simplification methodology to investigate the MLI's dependence on and sensitivity to design parameters by dividing the model of the complex adhesive connection into combinations of common lap joints. After proving the transferability of the lap joint approach for very thin laminates, a comparison of the experimentally measured surface strain distribution near an octagonal MLI is used to assess the quality of the approximation.
KW - Embedded load introduction
KW - Fiber-metal laminate
KW - Insert
KW - Joints
UR - http://www.scopus.com/inward/record.url?scp=85084164116&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85084164116
BT - ECCM 2018 - 18th European Conference on Composite Materials
T2 - 18th European Conference on Composite Materials, ECCM 2018
Y2 - 24 June 2018 through 28 June 2018
ER -