Details
| Original language | English |
|---|---|
| Pages (from-to) | 61-72 |
| Number of pages | 12 |
| Journal | Composites science and technology |
| Volume | 70 |
| Issue number | 1 |
| Publication status | Published - 17 Sept 2009 |
Abstract
The experimental determination of stiffness and strength of textile composites is expensive and time-consuming. Experimental tests are only capable of delivering properties of a whole textile layer, because a decomposition is not possible. However, a textile layer, consisting of several fiber directions, has the drawback that it is likely to exhibit anisotropic material behavior. In the presented paper a finite element multiscale analysis is proposed that is able to predict material behavior of textile composites via virtual tests, solely from the (nonlinear) material behavior of epoxy resin and glass fibers, as well as the textile fiber architecture. With these virtual tests it is possible to make predictions for a single layer within a textile preform or for multiple textile layers at once. The nonlinear and pressure-dependent behavior of the materials covered in the multiscale analysis is modeled with novel material models developed for this purpose. In order to avoid mesh-dependent solutions in the finite-element simulations, regularization techniques are applied. The simulations are compared to experimental test results.
Keywords
- A. Glass fibers, A. Textile composites, B. Mechanical properties, B. Non-linear behavior, C. Multiscale modeling
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
- Engineering(all)
- General Engineering
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In: Composites science and technology, Vol. 70, No. 1, 17.09.2009, p. 61-72.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Multiscale progressive failure analysis of textile composites
AU - Ernst, Gerald
AU - Vogler, Matthias
AU - Hühne, Christian
AU - Rolfes, Raimund
N1 - Funding information: Part of this work was funded by the German Research Council (DFG). This support within the framework of SPP-1123 “Textile composite design and manufacturing technologies for lightweight structures in mechanical and vehicle engineering” is gratefully acknowledged. The excellent cooperation with DLR Braunschweig was very much appreciated.
PY - 2009/9/17
Y1 - 2009/9/17
N2 - The experimental determination of stiffness and strength of textile composites is expensive and time-consuming. Experimental tests are only capable of delivering properties of a whole textile layer, because a decomposition is not possible. However, a textile layer, consisting of several fiber directions, has the drawback that it is likely to exhibit anisotropic material behavior. In the presented paper a finite element multiscale analysis is proposed that is able to predict material behavior of textile composites via virtual tests, solely from the (nonlinear) material behavior of epoxy resin and glass fibers, as well as the textile fiber architecture. With these virtual tests it is possible to make predictions for a single layer within a textile preform or for multiple textile layers at once. The nonlinear and pressure-dependent behavior of the materials covered in the multiscale analysis is modeled with novel material models developed for this purpose. In order to avoid mesh-dependent solutions in the finite-element simulations, regularization techniques are applied. The simulations are compared to experimental test results.
AB - The experimental determination of stiffness and strength of textile composites is expensive and time-consuming. Experimental tests are only capable of delivering properties of a whole textile layer, because a decomposition is not possible. However, a textile layer, consisting of several fiber directions, has the drawback that it is likely to exhibit anisotropic material behavior. In the presented paper a finite element multiscale analysis is proposed that is able to predict material behavior of textile composites via virtual tests, solely from the (nonlinear) material behavior of epoxy resin and glass fibers, as well as the textile fiber architecture. With these virtual tests it is possible to make predictions for a single layer within a textile preform or for multiple textile layers at once. The nonlinear and pressure-dependent behavior of the materials covered in the multiscale analysis is modeled with novel material models developed for this purpose. In order to avoid mesh-dependent solutions in the finite-element simulations, regularization techniques are applied. The simulations are compared to experimental test results.
KW - A. Glass fibers
KW - A. Textile composites
KW - B. Mechanical properties
KW - B. Non-linear behavior
KW - C. Multiscale modeling
UR - http://www.scopus.com/inward/record.url?scp=70450225236&partnerID=8YFLogxK
U2 - 10.1016/j.compscitech.2009.09.006
DO - 10.1016/j.compscitech.2009.09.006
M3 - Article
AN - SCOPUS:70450225236
VL - 70
SP - 61
EP - 72
JO - Composites science and technology
JF - Composites science and technology
SN - 0266-3538
IS - 1
ER -