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Dem simulation and electron microscopy analysis of the fatigue behavior of ultra-high performance concrete
Publikationstyp
Conference Paper
Date Issued
2019
Sprache
English
TORE-URI
Start Page
1427
End Page
1432
Citation
International Conference on Structural Engineering, Mechanics and Computation: 1427-1432 (2019)
Contribution to Conference
Publisher DOI
Scopus ID
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.