Details
| Original language | English |
|---|---|
| Pages (from-to) | 1243-1253 |
| Number of pages | 11 |
| Journal | Structural concrete |
| Volume | 20 |
| Issue number | 4 |
| Publication status | Published - Aug 2019 |
| Externally published | Yes |
Abstract
Ultra-high performance fiber-reinforced concrete (UHPFRC) is usually applied for thin-walled and lean constructions because of its excellent mechanical properties. However, these lightweight constructions such as bridge girders, masts, towers, and railway tracks, for example, are susceptible to oscillations due to cyclic loading. A model describing the fatigue behavior of UHPFRC is required. Therefore, the material behavior of all mixture components and the composite itself, each subjected to cyclic tensile loading, is studied experimentally and numerically on the mesoscale at iBMB, Division of Concrete Construction and Institute of Structural Analysis both at TU Braunschweig. In this paper, first findings concerning bond processes of single and multiple micro steel fibers embedded in ultra-high performance concrete as well as a new geometrically and physically nonlinear bond model are presented.
Keywords
- bond stress-slip behavior, damage processes, micro steel fiber, nonlinear bond model, ultra-high performance concrete
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanics of Materials
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In: Structural concrete, Vol. 20, No. 4, 08.2019, p. 1243-1253.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Bond behavior of micro steel fibers embedded in ultra‐high performance concrete subjected to monotonic and cyclic loading
AU - Lanwer, Jan‐Paul
AU - Oettel, Vincent
AU - Empelmann, Martin
AU - Höper, Svenja
AU - Kowalsky, Ursula
AU - Dinkler, Dieter
N1 - Funding Information: This cooperative research project conducted at iBMB, Division of Concrete Construction, and Institute of Structural Analysis, both at TU Braunschweig, is part of the Priority Program 2020 which is funded by the German Research Foundation (DFG). The authors acknowledge the financial support.
PY - 2019/8
Y1 - 2019/8
N2 - Ultra-high performance fiber-reinforced concrete (UHPFRC) is usually applied for thin-walled and lean constructions because of its excellent mechanical properties. However, these lightweight constructions such as bridge girders, masts, towers, and railway tracks, for example, are susceptible to oscillations due to cyclic loading. A model describing the fatigue behavior of UHPFRC is required. Therefore, the material behavior of all mixture components and the composite itself, each subjected to cyclic tensile loading, is studied experimentally and numerically on the mesoscale at iBMB, Division of Concrete Construction and Institute of Structural Analysis both at TU Braunschweig. In this paper, first findings concerning bond processes of single and multiple micro steel fibers embedded in ultra-high performance concrete as well as a new geometrically and physically nonlinear bond model are presented.
AB - Ultra-high performance fiber-reinforced concrete (UHPFRC) is usually applied for thin-walled and lean constructions because of its excellent mechanical properties. However, these lightweight constructions such as bridge girders, masts, towers, and railway tracks, for example, are susceptible to oscillations due to cyclic loading. A model describing the fatigue behavior of UHPFRC is required. Therefore, the material behavior of all mixture components and the composite itself, each subjected to cyclic tensile loading, is studied experimentally and numerically on the mesoscale at iBMB, Division of Concrete Construction and Institute of Structural Analysis both at TU Braunschweig. In this paper, first findings concerning bond processes of single and multiple micro steel fibers embedded in ultra-high performance concrete as well as a new geometrically and physically nonlinear bond model are presented.
KW - bond stress-slip behavior
KW - damage processes
KW - micro steel fiber
KW - nonlinear bond model
KW - ultra-high performance concrete
UR - http://www.scopus.com/inward/record.url?scp=85065306675&partnerID=8YFLogxK
U2 - 10.1002/suco.201900030
DO - 10.1002/suco.201900030
M3 - Article
VL - 20
SP - 1243
EP - 1253
JO - Structural concrete
JF - Structural concrete
SN - 1464-4177
IS - 4
ER -