Details
| Original language | English |
|---|---|
| Pages (from-to) | 999-1016 |
| Number of pages | 18 |
| Journal | Computational mechanics |
| Volume | 55 |
| Issue number | 5 |
| Publication status | Published - 2 Apr 2015 |
Abstract
The present work establishes a reliable model to describe the influence due to the interfacial transition zone (ITZ) between cement paste and aggregates on the mechanical, thermal and diffusion properties of concrete. The mesostructure of concrete consists of aggregates with a random distribution embedded in the cement paste as well as the interface elements with zero-thickness representing the ITZ. In this work, the cohesive zone model (CZM) is used to model the debonding at the ITZ between cement paste and aggregates. Furthermore, a traction-separation law in CZM combined with micromechanically motivated thermal flux-separation relation and diffusion flux-separation relation is developed, thus enabling to describe the temperature jump and humidity jump across the cohesive crack.
Keywords
- Cohesive zone model, Concrete, Coupling, Multiscale
ASJC Scopus subject areas
- Engineering(all)
- Computational Mechanics
- Engineering(all)
- Ocean Engineering
- Engineering(all)
- Mechanical Engineering
- Computer Science(all)
- Computational Theory and Mathematics
- Mathematics(all)
- Computational Mathematics
- Mathematics(all)
- Applied Mathematics
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In: Computational mechanics, Vol. 55, No. 5, 02.04.2015, p. 999-1016.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Multiscale diffusion–thermal–mechanical cohesive zone model for concrete
AU - Wu, T.
AU - Wriggers, P.
PY - 2015/4/2
Y1 - 2015/4/2
N2 - The present work establishes a reliable model to describe the influence due to the interfacial transition zone (ITZ) between cement paste and aggregates on the mechanical, thermal and diffusion properties of concrete. The mesostructure of concrete consists of aggregates with a random distribution embedded in the cement paste as well as the interface elements with zero-thickness representing the ITZ. In this work, the cohesive zone model (CZM) is used to model the debonding at the ITZ between cement paste and aggregates. Furthermore, a traction-separation law in CZM combined with micromechanically motivated thermal flux-separation relation and diffusion flux-separation relation is developed, thus enabling to describe the temperature jump and humidity jump across the cohesive crack.
AB - The present work establishes a reliable model to describe the influence due to the interfacial transition zone (ITZ) between cement paste and aggregates on the mechanical, thermal and diffusion properties of concrete. The mesostructure of concrete consists of aggregates with a random distribution embedded in the cement paste as well as the interface elements with zero-thickness representing the ITZ. In this work, the cohesive zone model (CZM) is used to model the debonding at the ITZ between cement paste and aggregates. Furthermore, a traction-separation law in CZM combined with micromechanically motivated thermal flux-separation relation and diffusion flux-separation relation is developed, thus enabling to describe the temperature jump and humidity jump across the cohesive crack.
KW - Cohesive zone model
KW - Concrete
KW - Coupling
KW - Multiscale
UR - http://www.scopus.com/inward/record.url?scp=84937816774&partnerID=8YFLogxK
U2 - 10.1007/s00466-015-1149-y
DO - 10.1007/s00466-015-1149-y
M3 - Article
AN - SCOPUS:84937816774
VL - 55
SP - 999
EP - 1016
JO - Computational mechanics
JF - Computational mechanics
SN - 0178-7675
IS - 5
ER -