Title: Experimental and numerical investigations of the fatigue behavior of ultra-high performance concrete
Language: English
Authors: Rybczynski, Sebastian 
Schaan, Gunnar 
Dosta, Maksym 
Ritter, Martin  
Schmidt-Döhl, Frank Michael  
Issue Date: 2019
Source: Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures : 105-112 (2019)
Abstract (english): This contribution deals with preliminary experimental and numerical results on the fatigue behavior of ultra-high performance concrete (UHPC). For this purpose, a set of experimental investigations has been performed on samples of UHPC, pure aggregate and binder. In order to obtain structural changes in detail, UHPC samples were examined using scanning and transmission electron microscopy (SEM and TEM) and tomography. For numerical investigations of the mechanical behavior of UHPC, the bonded-particle model (BPM) has been used and calibrated with experimental data. Additionally, to maintain realistic non-spherical shape of the aggregates, micro-CT analysis was used for the mesoscopic model. Furthermore, a rheological model for cement bonds was proposed to capture a plastic deformation for prospective fatigue simulations.
Conference: The fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures 
URI: http://hdl.handle.net/11420/2748
ISBN: 978-294064300-4
Institute: Baustoffe, Bauphysik und Bauchemie B-3 
Feststoffverfahrenstechnik und Partikeltechnologie V-3 
Betriebseinheit Elektronenmikroskopie M-26 
Mehrskalensimulation von Feststoffsystemen V-EXK1 
Type: InProceedings (Aufsatz / Paper einer Konferenz etc.)
Funded by: We gratefully acknowledge financial support from the German Research Foundation (DFG) within the priority program SPP 2020 “Cyclic deterioration of High-Performance Concrete in an experimental-virtual lab” under the projects: SCHM 1473/29-1, RI 1516/2-1, DO 2026/2-1.
Project: Teilprojekt von SPP 2020: Hochauflösende elektronenmikroskopische Untersuchungen zum Ermüdungsverhalten von Hochleistungsbetonen und mehrskalige Modelierung mittels Bonded Particle Model 
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