Publisher DOI: 10.1201/9780429426506-246
Title: Dem simulation and electron microscopy analysis of the fatigue behavior of ultra-high performance concrete
Language: English
Authors: Schmidt-Döhl, Frank Michael  
Rybczynski, Sebastian 
Dosta, Maksym 
Schaan, Gunnar 
Ritter, Martin  
Issue Date: 2019
Source: International Conference on Structural Engineering, Mechanics and Computation: 1427-1432 (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). 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 binder bonds was proposed to capture a plastic deformation for prospective fatigue simulations.
Conference: 7th International Conference on Structural Engineering, Mechanics and Computation, 2019 
ISBN: 978-113838696-9
Institute: Baustoffe, Bauphysik und Bauchemie B-3 
Mehrskalensimulation von Feststoffsystemen V-EXK1 
Betriebseinheit Elektronenmikroskopie M-26 
Document Type: Chapter/Article (Proceedings)
Project: Teilprojekt von SPP 2020: Hochauflösende elektronenmikroskopische Untersuchungen zum Ermüdungsverhalten von Hochleistungsbetonen und mehrskalige Modelierung mittels Bonded Particle Model 
Zyklische Schädigungsprozesse in Hochleistungsbetonen im Experimental-Virtual-Lab 
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