Identification of Material Parameters for Nonlocal Model of Concrete Fracture

Identification of Material Parameters for Nonlocal Model of Concrete Fracture

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This paper presents simulation of large experimental series on bended concrete beams performed at the Northwesten University by the team of Professor Bažant. The beams have different size and notch depth. The simulations were performed using the continuous nonlocal isotropic damage model. The focus of the paper is identification of model parameters according to the experimental data. Besides the load–crack opening curves taken from experiments, the identification also relies on information about the fracture process zone size provided by discrete modeling of the same experimental series.

This paper presents simulation of large experimental series on bended concrete beams performed at the Northwesten University by the team of Professor Bažant. The beams have different size and notch depth. The simulations were performed using the continuous nonlocal isotropic damage model. The focus of the paper is identification of model parameters according to the experimental data. Besides the load–crack opening curves taken from experiments, the identification also relies on information about the fracture process zone size provided by discrete modeling of the same experimental series.

concrete fracture, experimental data, nonlocal model, weight function, identification, energy dissipation.

concrete fracture, experimental data, nonlocal model, weight function, identification, energy dissipation.

KVĚTOŇ, J.; ELIÁŠ, J.

2016

01.09.2015

J. Kruis, Y. Tsompanakis, B.H.V. Topping

978-1-905088-63-8

Proceedings of the Fifteenth International Conference on Civil, Structural and Enviromental Engineering Computing, CivilComp 2015

1759-3433

Civil-Comp Proceedings

2015

108

Spojené království Velké Británie a Severního Irska

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