Characterization of multidimensional cycles of non cohesive soils
DOI:
https://doi.org/10.4067/S0718-28132015000100004Keywords:
cyclic loading, multidimensional strain loops, strain accumulationAbstract
A cyclic loading with multidimensional strain loops in the soil may be caused by traffic loading, wind and wave loading (e.g. offshore wind turbines) or by earthquake shaking. The present paper focuses on the accumulation of permanent deformations due to high-cyclic loading. That means loading with many cycles of small to intermediate strain amplitude. Experimental evidence for complicated strain loops is provided. Drained axisymmetric triaxial tests with a simultaneous oscillation of the axial and the lateral stress are presented. Strain loops obtained by a superposition of several harmonic functions with different frequencies and amplitudes are tested. For comparison, in a second test, the same oscillations are applied separately in succession. The sequence of application of the oscillations will also be varied.
References
Huber, G. (1988). Erschütterungsausbreitung beim Rad/ Schiene-System. PhD thesis, Institute of Soil Mechanics and Rock Mechanics, University of Karlsruhe, Germany, Issue No. 115 (en alemán)
Ishihara, K. and Yamazaki, F. (1980). Cyclic simple shear tests on saturated sand in multi-directional loading. Soils and Foundations 20, No. 1, 45-59. https://doi.org/10.3208/sandf1972.20.45
Miner, M. (1945). Cumulative damage in fatigue. Journal of Applied Mechanics 12(3), 159-164. https://doi.org/10.1115/1.4009458
Niemunis. A. (2003). Extended hypoplastic models for soils. Habilitation, Ruhr-University Bochum, Germany, Issue No. 34, disponible en www.pg.gda.pl/~aniem/an-liter.html.
Niemunis, A., Wichtmann, T. and Triantafyllidis, Th. (2005). A high-cycle accumulation model for sand. Computers and Geotechnics 32, No. 4, 245-263. https://doi.org/10.1016/j.compgeo.2005.03.002
Niemunis, A., Wichtmann, T. and Triantafyllidis, Th. (2007). On the definition of the fatigue loading for sand. International Workshop on Constitutive Modelling - Development, Implementation, Evaluation, and Application, 12-13 January 2007, Hong Kong.
Poblete, M. and Wichtmann, T. (2008). Accumulation of residual deformations due to cyclic loading with complicated strain loops. Obras y Proyectos 4, 44-52
Wichtmann, T., Niemunis, A. and Triantafyllidis, Th. (2007). On the influence of the polarization and the shape of the strain loop on strain accumulation in sand under high-cyclic loading. Soil Dynamics and Earthquake Engineering 27, No. 1, 14-28. https://doi.org/10.1016/j.soildyn.2006.05.002
Wichtmann. T. (2005). Explicit accumulation model for non-cohesive soils under cyclic loading. Ruhr-University Bochum, Germany, Issue No. 38
Wichtmann, T., Niemunis, A. and Triantafyllidis, Th. (2011). Prediction of drained and undrained cyclic behaviour of a fine sand using a high-cycle accumulation model. 5th International Conference on Earthquake Geotechnical Engineering, Santiago, Chile
Wichtmann, T., Niemunis, A. and Triantaíyllidis, Th. (2013). On the "elastic stiffness" in a high-cycle accumulation model - continued investigations. Canadian Geotechnical Journal 50(12), 1260-1272
Downloads
Published
Issue
Section
License
Copyright (c) 2015 Universidad Católica de la Santísima Concepción
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
