Abstract
It is known that some common constitutive models show deficits when predicting elastic and plastic deformations due to low cycle loading resulting for example from geotechnical installation processes. The aim of part I of subproject 8 within the DFG research group FOR 1136 (GeoTech) is to show the performance of different constitutive models and to compare them with experimental results and between each other.
Series of drained, stress-controlled triaxial-tests are carried out. The strains from monotonous and low-cycle loading are investigated systematically, regarding total and quasi-elastic strains as well as strain accumulation.
All experiments are recalculated numerically with different constitutive models, amongst them some common as well as advanced constitutive models, which have been developed recently and partly within the aforementioned research group GeoTech. By comparing the experimental and numerical results systematically, an attempt is made to show the model’s advantages and deficits and to give hints for the application in boundary value problems.
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Acknowledgment
The work presented in this paper was supported by the German Research Foundation (DFG) as subproject 8 “Incremental stress-strain-behaviour of sand at low-cycle loading and application on excavation-models” of the interdisciplinary research group FOR 1136 “Simulation of geotechnical construction processes with holistic consideration of the stress strain soil behaviour (GeoTech) “Incremental stress-strain behaviour”. The authors appreciate the financial support from the DFG.
The authors also like to thank their colleagues of Karlsruhe Institute of Technology (KIT) and of the institute of applied mechanics of Stuttgart University, who supported the authors by providing parameter sets of the fine sand and programmes to carry out the numerical calculations.
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Danne, S., Hettler, A. (2017). Total and Quasi-Elastic Strains Due to Monotonous and Low-Cycle Loading by Means of Experimental and Numerical Element Tests. In: Triantafyllidis, T. (eds) Holistic Simulation of Geotechnical Installation Processes. Lecture Notes in Applied and Computational Mechanics, vol 82. Springer, Cham. https://doi.org/10.1007/978-3-319-52590-7_14
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DOI: https://doi.org/10.1007/978-3-319-52590-7_14
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