Details
| Original language | English |
|---|---|
| Title of host publication | 16th European Conference on Composite Materials, ECCM 2014 |
| ISBN (electronic) | 9780000000002 |
| Publication status | Published - 2014 |
| Event | 16th European Conference on Composite Materials, ECCM 2014 - Seville, Spain Duration: 22 Jun 2014 → 26 Jun 2014 |
Publication series
| Name | 16th European Conference on Composite Materials, ECCM 2014 |
|---|
Abstract
In this paper an approach to include the effects of a forming process on preimpregnated fibers into the design of composite structures by analysis of the resulting fiber waviness is presented. Therefore the influence of the forming process and a measurement method for fiber waviness is discussed. Fiber waviness in formed composite parts is characterized by the power spectral density and the resulting fiber angle distribution. This modeled using a discrete inverse fast Fourier transformation. Subsequently the mechanical properties are calculated based on these fiber angle distributions in a finite element analysis. An additional comparative experimental analysis of a specimen manufactured with and without the influence of the forming process is presented. The measured fiber angle distributions are analyzed and resulting first ply failure for both cases is predicted using the presented method.
Keywords
- Composites, Fiber waviness, Forming, Uncertainties
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
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16th European Conference on Composite Materials, ECCM 2014. 2014. (16th European Conference on Composite Materials, ECCM 2014).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Effect of manufacturing process induced fiber waviness on mechanical properties of composite structures by example of a prepreg forming process
AU - Engel, K.
AU - Horst, P.
AU - Hundt, T.
AU - Schmidt, C.
AU - Denkena, B.
PY - 2014
Y1 - 2014
N2 - In this paper an approach to include the effects of a forming process on preimpregnated fibers into the design of composite structures by analysis of the resulting fiber waviness is presented. Therefore the influence of the forming process and a measurement method for fiber waviness is discussed. Fiber waviness in formed composite parts is characterized by the power spectral density and the resulting fiber angle distribution. This modeled using a discrete inverse fast Fourier transformation. Subsequently the mechanical properties are calculated based on these fiber angle distributions in a finite element analysis. An additional comparative experimental analysis of a specimen manufactured with and without the influence of the forming process is presented. The measured fiber angle distributions are analyzed and resulting first ply failure for both cases is predicted using the presented method.
AB - In this paper an approach to include the effects of a forming process on preimpregnated fibers into the design of composite structures by analysis of the resulting fiber waviness is presented. Therefore the influence of the forming process and a measurement method for fiber waviness is discussed. Fiber waviness in formed composite parts is characterized by the power spectral density and the resulting fiber angle distribution. This modeled using a discrete inverse fast Fourier transformation. Subsequently the mechanical properties are calculated based on these fiber angle distributions in a finite element analysis. An additional comparative experimental analysis of a specimen manufactured with and without the influence of the forming process is presented. The measured fiber angle distributions are analyzed and resulting first ply failure for both cases is predicted using the presented method.
KW - Composites
KW - Fiber waviness
KW - Forming
KW - Uncertainties
UR - http://www.scopus.com/inward/record.url?scp=84915746949&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84915746949
T3 - 16th European Conference on Composite Materials, ECCM 2014
BT - 16th European Conference on Composite Materials, ECCM 2014
T2 - 16th European Conference on Composite Materials, ECCM 2014
Y2 - 22 June 2014 through 26 June 2014
ER -