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Selected Publication:

Pressmair, N; Brosch, F; Hammerl, M; Kromoser, B.
(2022): Non-linear material modelling strategy for conventional and high-performance concrete assisted by testing br
CEMENT CONCRETE RES. 2022; 161, 106933 FullText FullText_BOKU

Abstract:
Concrete is associated with highly non-linear material behaviour leading to significant complications within numerical modelling. Simplifications, such as the assumption of a linear-elastic stress-strain relationship are only justified to a limited extent. Furthermore, solely relying on predefined material models within software that considers the non-linear material behaviour requires detailed prior knowledge by the user. The aim of this study is to outline a non-linear material modelling strategy assisted by hardened concrete testing, serving as a guide for independent implementation. More than 230 hardened concrete experiments were carried out on four fine- grained concrete types, which are normal strength, high performance and ultra-high performance concrete with and without fibres. The obtained numerical load-displacement curves show excellent agreement with the experiments. One key finding was that the influence of the experimental setup on the results has to be consid-ered. Finally, the proposed strategy was successfully put to test on high performance concrete T-beams.
Authors BOKU Wien:
Brosch Florian
Hammerl Mathias
Kromoser Benjamin
Preßmair Nadine

Find related publications in this database (Keywords)
Numerical modelling
Non-linear material behaviour
Hardened concrete testing
Concrete types
High-performance concrete


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