Details
| Originalsprache | Englisch |
|---|---|
| Publikationsstatus | Veröffentlicht - 2015 |
| Veranstaltung | 20th International Conference on Composite Materials, ICCM 2015 - Copenhagen, Dänemark Dauer: 19 Juli 2015 → 24 Juli 2015 |
Konferenz
| Konferenz | 20th International Conference on Composite Materials, ICCM 2015 |
|---|---|
| Land/Gebiet | Dänemark |
| Ort | Copenhagen |
| Zeitraum | 19 Juli 2015 → 24 Juli 2015 |
Abstract
The mechanical response of IM7-8552 carbon epoxy was investigated for transverse tension and transverse tension / in-plane shear loadings at static and dynamic strain rates using transverse tension and off-axis tension specimens. The dynamic tests were carried out on a split-Hopkinson tension bar at axial strain rates from 113s-1 to 300s-1. With the already available off-axis and transverse compression test data for IM7-8552 presented in [1], a comprehensive data set is available now, which can be used for validation and calibration of numerical models. The measured axial stress-strain response was simulated using a fully 3D transversely isotropic elastic-viscoplastic constitutive model. The constitutive model represents a viscoplastic extension of the transversely-isotropic plasticity model presented in [2]. A generally quite good correlation between the measured and numerically predicted stress-strain response was achieved for all specimen types and both strain rate regimes. However, the results show the necessity to regard viscous effects in the elastic regime as well.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Allgemeiner Maschinenbau
- Werkstoffwissenschaften (insg.)
- Keramische und Verbundwerkstoffe
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2015. Beitrag in 20th International Conference on Composite Materials, ICCM 2015, Copenhagen, Dänemark.
Publikation: Konferenzbeitrag › Paper › Forschung › Peer-Review
}
TY - CONF
T1 - Constitutive modeling and experimental characterization of the non-linear stress-strain behavior of unidirectional carbon-epoxy under high strain rates
AU - Vogler, Matthias
AU - Koerber, Hannes
AU - Kuhn, Peter
AU - Rolfes, Raimund
AU - Camanho, Pedro
N1 - Publisher Copyright: © 2015 International Committee on Composite Materials. All rights reserved. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2015
Y1 - 2015
N2 - The mechanical response of IM7-8552 carbon epoxy was investigated for transverse tension and transverse tension / in-plane shear loadings at static and dynamic strain rates using transverse tension and off-axis tension specimens. The dynamic tests were carried out on a split-Hopkinson tension bar at axial strain rates from 113s-1 to 300s-1. With the already available off-axis and transverse compression test data for IM7-8552 presented in [1], a comprehensive data set is available now, which can be used for validation and calibration of numerical models. The measured axial stress-strain response was simulated using a fully 3D transversely isotropic elastic-viscoplastic constitutive model. The constitutive model represents a viscoplastic extension of the transversely-isotropic plasticity model presented in [2]. A generally quite good correlation between the measured and numerically predicted stress-strain response was achieved for all specimen types and both strain rate regimes. However, the results show the necessity to regard viscous effects in the elastic regime as well.
AB - The mechanical response of IM7-8552 carbon epoxy was investigated for transverse tension and transverse tension / in-plane shear loadings at static and dynamic strain rates using transverse tension and off-axis tension specimens. The dynamic tests were carried out on a split-Hopkinson tension bar at axial strain rates from 113s-1 to 300s-1. With the already available off-axis and transverse compression test data for IM7-8552 presented in [1], a comprehensive data set is available now, which can be used for validation and calibration of numerical models. The measured axial stress-strain response was simulated using a fully 3D transversely isotropic elastic-viscoplastic constitutive model. The constitutive model represents a viscoplastic extension of the transversely-isotropic plasticity model presented in [2]. A generally quite good correlation between the measured and numerically predicted stress-strain response was achieved for all specimen types and both strain rate regimes. However, the results show the necessity to regard viscous effects in the elastic regime as well.
KW - Carbon-epoxy
KW - Composites
KW - Constitutive modeling
KW - Strain rate effects
KW - Viscoplasticity
UR - http://www.scopus.com/inward/record.url?scp=85053110592&partnerID=8YFLogxK
M3 - Paper
T2 - 20th International Conference on Composite Materials, ICCM 2015
Y2 - 19 July 2015 through 24 July 2015
ER -