Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | IUTAM Symposium on Theoretical, Computational and Modelling Aspects of Inelastic Media - Proceedings of the IUTAM Symposium |
| Seiten | 15-26 |
| Seitenumfang | 12 |
| Publikationsstatus | Veröffentlicht - 2008 |
| Veranstaltung | IUTAM Symposium on Theoretical, Computational and Modelling Aspects of Inelastic Media - Cape Town, Südafrika Dauer: 14 Jan. 2008 → 18 Jan. 2008 |
Publikationsreihe
| Name | IUTAM Bookseries |
|---|---|
| Band | 11 |
| ISSN (Print) | 1875-3507 |
Abstract
Based on a micro-structural finite-element model using computer-tomography scans at micro meter length-scale, damage due to frost within hardened cement paste (HCP) is evaluated. In order to establish microscopic constitutive equations comparison with experimental data at macro-level are performed together with parameter identification. Subsequently, damage due to frost is simulated numerically: the water filled pores of HCP increase in volume during a freezing process which yields an inelastic material behavior. Numerical simulations at micro-structural level are performed for different moistures and temperatures. Upscaling then leads to an effective correlation between moisture, temperature and the inelastic material behaviour. Finally, thermomechanically coupling is introduced on the macro-scale and an effective constitutive equation for HCP is developed using the abovementioned temperature-moisture-damage correlation.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Tief- und Ingenieurbau
- Ingenieurwesen (insg.)
- Fahrzeugbau
- Ingenieurwesen (insg.)
- Luft- und Raumfahrttechnik
- Physik und Astronomie (insg.)
- Akustik und Ultraschall
- Ingenieurwesen (insg.)
- Maschinenbau
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- BibTex
- RIS
IUTAM Symposium on Theoretical, Computational and Modelling Aspects of Inelastic Media - Proceedings of the IUTAM Symposium. 2008. S. 15-26 (IUTAM Bookseries; Band 11).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Material characterization based on micro-structural computations and homogenization
AU - Wriggers, Peter
AU - Hain, M.
PY - 2008
Y1 - 2008
N2 - Based on a micro-structural finite-element model using computer-tomography scans at micro meter length-scale, damage due to frost within hardened cement paste (HCP) is evaluated. In order to establish microscopic constitutive equations comparison with experimental data at macro-level are performed together with parameter identification. Subsequently, damage due to frost is simulated numerically: the water filled pores of HCP increase in volume during a freezing process which yields an inelastic material behavior. Numerical simulations at micro-structural level are performed for different moistures and temperatures. Upscaling then leads to an effective correlation between moisture, temperature and the inelastic material behaviour. Finally, thermomechanically coupling is introduced on the macro-scale and an effective constitutive equation for HCP is developed using the abovementioned temperature-moisture-damage correlation.
AB - Based on a micro-structural finite-element model using computer-tomography scans at micro meter length-scale, damage due to frost within hardened cement paste (HCP) is evaluated. In order to establish microscopic constitutive equations comparison with experimental data at macro-level are performed together with parameter identification. Subsequently, damage due to frost is simulated numerically: the water filled pores of HCP increase in volume during a freezing process which yields an inelastic material behavior. Numerical simulations at micro-structural level are performed for different moistures and temperatures. Upscaling then leads to an effective correlation between moisture, temperature and the inelastic material behaviour. Finally, thermomechanically coupling is introduced on the macro-scale and an effective constitutive equation for HCP is developed using the abovementioned temperature-moisture-damage correlation.
KW - Cement paste
KW - Damage
KW - Finite elements
KW - Frost
KW - Multi-scale
UR - http://www.scopus.com/inward/record.url?scp=84862281711&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84862281711
SN - 9781402090899
T3 - IUTAM Bookseries
SP - 15
EP - 26
BT - IUTAM Symposium on Theoretical, Computational and Modelling Aspects of Inelastic Media - Proceedings of the IUTAM Symposium
T2 - IUTAM Symposium on Theoretical, Computational and Modelling Aspects of Inelastic Media
Y2 - 14 January 2008 through 18 January 2008
ER -