In-plane behaviour of rammed earth under cyclic loading: Experimental testing and finite element modelling
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10.1016/j.engstruct.2016.07.010
Inclou dades d'ús des de 2022
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hdl:2117/379145
Tipus de documentArticle
Data publicació2016-10
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Reconeixement-NoComercial-SenseObraDerivada 4.0 Internacional
Abstract
The intent of this paper is to numerically simulate the in-plane behaviour of rammed earth walls under cyclic shear-compression tests. The experimental testing allowed obtaining the maximum horizontal loads, the displacement capacity and the level of non-linear behaviour of the respective load-displacement relationships as well as the failure modes. The calibration of the numerical model (finite elements method) was carried out using the experimental results. A micro modelling approach was considered. The behaviour of rammed earth material was simulated using a total strain rotating crack model. A Mohr-Coulomb failure criterion was used to reproduce the behaviour of the interfaces between layers. Although the results of the numerical model well fit the experimental results a sensitivity analysis was performed to define also the influence of different input parameters. As expected the sensitivity analysis shows that the occurrence of sliding failure is mainly influenced by two parameters of the interface elements: the tensile strength and the friction angle. Moreover the cohesion and the layers thickness show a limited influence on the shear behaviour.
CitacióMiccoli, L.; Drougkas, A.; Müller, U. In-plane behaviour of rammed earth under cyclic loading: Experimental testing and finite element modelling. "Engineering structures", Octubre 2016, vol. 125, p. 144-152.
ISSN0141-0296
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