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KRÁL, P. HRADIL, P. KALA, J. KALA, Z. HOKEŠ, F.
Original Title
Using the inverse identification of parameters of a nonlinear concrete material model for analysis of RC structural element
Type
conference paper
Language
English
Original Abstract
Finite element (FE) analyses of reinforced concrete (RC) structures or structural elements using nonlinear concrete material models are currently a subject of interest for many scientific institutions or departments. Obtaining of relevant results from such analyses depends on a number of aspects, including (for example) the level of complexity of the computational model used, correct boundary conditions, the correct definition of parameter values of the material models used, etc. A key aspect from the above-mentioned aspects is especially the problematic of the definition of correct parameter values of the used material models. Defining the correct parameter values of the material models is often a very difficult task because we usually do not have enough knowledges about the given parameters or their possible ranges. However, the current level of computational technology combined with the current state of knowledge in the fields of mathematical statistics, artificial neural networks and optimization allows us to successfully deal with the given task by so called inverse identification of parameters whose correct numerical values we need to obtain. The aim of this paper is to show the possibility of using the optimization-based inverse identification of parameter values of a nonlinear concrete material model for FE analysis of structural element which is a high RC beam subjected to a four-point bending. For this purpose, the results of the corresponding experiment are used.
Keywords
experiment; FE analysis; four-point bending test; concrete; reinforcement; inverse parameter identification.
Authors
KRÁL, P.; HRADIL, P.; KALA, J.; KALA, Z.; HOKEŠ, F.
Released
24. 7. 2019
ISBN
1551-7616
Periodical
AIP Conference Proceedings
Year of study
2019
State
United States of America
Pages from
1
Pages to
4
Pages count
BibTex
@inproceedings{BUT162646, author="Petr {Král} and Petr {Hradil} and Jiří {Kala} and Zdeněk {Kala} and Filip {Hokeš}", title="Using the inverse identification of parameters of a nonlinear concrete material model for analysis of RC structural element", booktitle="AIP Conference Proceedings", year="2019", journal="AIP Conference Proceedings", volume="2019", pages="1--4", doi="10.1063/1.5114111", issn="1551-7616" }