Multiple 3D inhomogeneous inclusions in a half space under contact loading

Zhou, Kun; Chen, W. Wayne; Keer, Leon M.; Ai, Xiaolan; Sawamiphakdi, Krich; Glaws, Peter; Wang, Q. Jane

doi:10.1016/j.mechmat.2011.02.001

Cited by 89 publications

(42 citation statements)

References 36 publications

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“…This means that it is the model of the inhomogeneous half-space which describes the deformation behaviour of the soil better that the homogeneous model. Using of inhomogeneous half-space is also described in papers [12,13,14]. Homogeneous half-space and also inhomogeneous half-space were used in numerical analyses.…”

Section: D Computational Model In Ansys Systemmentioning

confidence: 99%

3d Numerical Model in Nonlinear Analysis of the Interaction Between Subsoil and SFCR Slab

Labudková¹,

Čajka²

2017

GEOMATE

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For decades attention has been paid to interaction of foundation structures and subsoil and, in turn, to development of interaction models. Complexity of a static solution is given mainly by selection of a computational model, effects of physical-nonlinear behaviour of such structure and co-effects of the upper structure and the foundation structure. ). Input data for numerical analysis were observed experimental loading test of steel-fibre reinforced concrete slab. The loading was performed using unique experimental equipment which was constructed in the area Faculty of Civil Engineering, VŠB-TU Ostrava. Homogeneous half-space this takes no account and calculated settlement is strongly dependent on the size of the subsoil model, as parametric study demonstrated. The modulus of deformability changes continuously, depending on the depth, in the inhomogeneous half-space. Values calculated by 3D numerical model were compared with values measured during the loading test of steel-fibre concrete slab.

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Section: D Computational Model In Ansys Systemmentioning

confidence: 99%

3d Numerical Model in Nonlinear Analysis of the Interaction Between Subsoil and SFCR Slab

Labudková¹,

Čajka²

2017

GEOMATE

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“…Modulus of deformability increases linearly with depth according to Eq. (1) shown in [7]: The use of inhomogeneous half-space is also described by Fabrikant and Sankar in [5], and Zhou, Chen, Keer, Ai, Sawamiphakdi, Glaws, Wang in [12]. Fabrikant and Sankar in [5] introduce an equation for the shift in homogeneous halfspace outside the loaded areas in relation to the offsets within the loaded area.…”

Section: Spatial Numerical Model -Femmentioning

confidence: 99%

Numerical analyses of interaction of steel-fibre reinforced concrete slab model with subsoil

Labudková¹,

Čajka²

2016

Frattura Ed Integrità Strutturale

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ABSTRACT. Numerical analyses of contact task were made with FEM. The test sample for the task was a steel-fibre reinforced concrete foundation slab model loaded during experimental loading test. Application of inhomogeneous half-space was used in FEM analyses. Results of FEM analyses were also confronted with the values measured during the experiment.KEYWORDS. Foundation structure; Subsoil-structure interaction; FEM; Steelfibre reinforced concrete.Citation: Labudkova, J., Cajka, R., Numerical analyses of interaction of steel-fibre reinforced concrete slab model with subsoil, Frattura ed Integrità Strutturale, 39 (2017) 47-55.

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“…Assuming that a composite unit contains a single inclusion, the heterogeneous particles inside the material can effectively hinder or promote the migration of matrix material under external forces. The surface deforms less where there is a hard inclusion, 8 thereby forming a convex structure above the inclusion. By contrast, a dimple forms on the surface if the inclusion is soft (compared to the matrix).…”

Section: Introductionmentioning

confidence: 99%

Elastohydrodynamic lubrication in point contact on the surfaces of particle-reinforced composite

Chen

Zeng

et al. 2018

AIP Advances

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Appreciable friction and serious wear are common challenges in the operation of advanced manufacturing equipment, and friction pairs may be susceptible to damage even with oil lubrication when point contact exists. In this study, a type of particle-reinforced composite material is introduced for one of the components of a heavy-load contact pair, and the performance improvement of elastohydrodynamic lubrication (EHL) is analyzed considering the rheological properties of non-Newtonian fluids. The Ree–Eyring EHL model is used considering the surface of the particle-reinforced composite, in which the film thickness includes the particle-induced elastic deformation. The problem of inclusions with different eigenstrains is solved by using Galerkin vectors. The influences of particle properties, size, burial depth, and interparticle distance on point-contact EHL are investigated. Furthermore, using several cases, the structural parameters of the particles in the composites are optimized, and an appropriate parameter range is obtained with the goal of reducing friction. Finally, the results for the EHL traction coefficient demonstrate that appropriate particle properties, size, burial depth, and interparticle distance can effectively reduce the traction coefficient in heavy-load contact.

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Multiple 3D inhomogeneous inclusions in a half space under contact loading

Cited by 89 publications

References 36 publications

3d Numerical Model in Nonlinear Analysis of the Interaction Between Subsoil and SFCR Slab

3d Numerical Model in Nonlinear Analysis of the Interaction Between Subsoil and SFCR Slab

Numerical analyses of interaction of steel-fibre reinforced concrete slab model with subsoil

Elastohydrodynamic lubrication in point contact on the surfaces of particle-reinforced composite

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