Search Results - "Hicher, P. Y."

On the capillary stress tensor in wet granular materials by Scholtès, L., Hicher, P.-Y., Nicot, F., Chareyre, B., Darve, F.

“…This paper presents a micromechanical study of unsaturated granular media in the pendular regime, based on numerical experiments using the discrete element…”
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Single-and multi-objective genetic algorithm optimization for identifying soil parameters by Papon, A., Riou, Y., Dano, C., Hicher, P.-Y.

“…SUMMARY This paper discusses the quality of the procedure employed in identifying soil parameters by inverse analysis. This procedure includes a FEM‐simulation…”
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An elasto-plastic model for granular materials with microstructural consideration by Chang, C.S., Hicher, P.-Y.

“…In this paper, we have extended the granular mechanics approach to derive an elasto-plastic stress–strain relationship. The deformation of a representative…”
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Population balance in confined comminution using a physically based probabilistic approach for polydisperse granular materials by Ovalle, C., Voivret, C., Dano, C., Hicher, P.-Y.

“…Summary A novel, simplified approach is presented in order to compute variations of grading in granular assemblies during confined comminution under…”
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Sensitivity of the initiation of debris flow to initial soil moisture by Hu, W., Xu, Q., Wang, G. H., van Asch, T. W. J., Hicher, P.-Y.

“…The initiation of debris flows is commonly attributed either to fluidization as a result of rainfall-induced landslides or to gully erosion induced by…”
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Micromechanical Analysis for Interparticle and Assembly Instability of Sand by Chang, C. S, Yin, Z.-Y, Hicher, P.-Y

“…Instability of granular material may lead to catastrophic events such as the gross collapse of earth structures, and thus it is an important topic in…”
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Diffuse failure in geomaterials: Experiments, theory and modelling by Daouadji, A., Darve, F., Al Gali, H., Hicher, P. Y., Laouafa, F., Lignon, S., Nicot, F., Nova, R., Pinheiro, M., Prunier, F., Sibille, L., Wan, R.

“…This paper presents a synthesis of the works performed by various teams from France, Italy and Canada around the question of second‐order work criterion…”
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Calculation of the dynamic response of a viscoelastic railway structure based on a quasi-stationary approach by Chupin, O., Martin, A., Piau, J.-M., Hicher, P.-Y.

“…A semi-analytical method has been developed for computing the dynamic response of railways composed of viscoelastic layers under moving loads. One of the aims…”
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Time homogenization for clays subjected to large numbers of cycles by Papon, A., Yin, Z.-Y., Riou, Y., Hicher, P.-Y.

“…SUMMARY This paper discusses the reliability and the efficiency of a time homogenization method employed to reduce the computational time during cyclic loading…”
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A microstructural elastoplastic model for unsaturated granular materials by Hicher, P.-Y., Chang, C.S.

“…The homogenization technique is used to obtain an elastoplastic stress–strain relationship for dry, saturated and unsaturated granular materials. Deformation…”
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Reducing vertical acceleration in ballast layers of railways to mitigate geometrical disorders in high‐speed lines by Martin, A., Chupin, O., Piau, J.‐M., Hicher, P.‐Y.

“…According to field feedbacks from high‐speed lines (HSL), the increase of train operating speeds is responsible for unusual fast evolving geometrical disorders…”
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Engineering Properties of Grouted Sands by Dano, C, Hicher, P.-Y, Tailliez, S

“…A comparison of the behavior of uncemented and grouted sands is presented. Four sands (Fontainebleau sand and three types of alluvial deposits of the Seine…”
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Anisotropic Nonlinear Elastic Model for Particulate Materials by Hicher, P.-Y, Chang, C. S

“…This paper presents the development of an elastic model for particulate materials based on micromechanics considerations. A particulate material is considered…”
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Elastoplastic Model for Clay with Microstructural Consideration by Chang, C. S, Hicher, P.-Y, Yin, Z. Y, Kong, L. R

“…Clay material can be considered as a collection of clusters, which interact with each other mainly through mechanical forces. From this point of view, clay is…”
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Model for Granular Materials with Surface Energy Forces by Chang, C. S, Hicher, P.-Y

“…In light of environmental differences (such as gravitational fields, surface temperatures, atmospheric pressures, etc.), the mechanical behavior of the…”
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Evaluation of Two Homogenization Techniques for Modeling the Elastic Behavior of Granular Materials by Hicher, P.-Y, Chang, C. S

“…This paper discusses the capabilities of two homogenization techniques to accurately represent the elastic behavior of granular materials considered as…”
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Modeling of a semi-real injection test in sand by Chupin, O., Saiyouri, N., Hicher, P.-Y.

“…This article presents a model of flow and transport with filtration in porous media which is used to analyze large-scale grouting tests. A program based on the…”
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Ground and tunnel responses induced by partial leakage in saturated clay with anisotropic permeability by Zhang, D.M., Ma, L.X., Zhang, J., Hicher, P.Y., Juang, C.H.

“…Finite element analysis was conducted to study the ground and tunnel response to partial tunnel leakage coupled with anisotropic soil permeability, a novel and…”
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Elastic Model for Partially Saturated Granular Materials by Hicher, P.-Y, Chang, C. S

“…This paper presents the development of an elastic model for partially saturated granular materials based on micromechanical factor consideration. A granular…”
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Studying Grout Propagation in Granular Soils by Image Processing Techniques by Ait Alaiwa, A., Saiyouri, N., Hicher, P.-Y.

“…:  This article presents two image‐processing techniques which allow studying grout propagation in granular soils. The first one deals with the evaluation of…”
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