Crack patterns in clayey soils: Experiments and modeling

Trabelsi, H.; Jamei, Mehrez; Zenzri, Hatem; Olivella, S.

doi:10.1002/nag.1060

Cited by 122 publications

(64 citation statements)

References 61 publications

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“…These can be separated into two categories, direct and indirect tests. Direct tests include modification of triaxial testing apparatus (Tang and Graham, 2000;Heibrock et al, 2003;Witt and Zeh, 2007) and modification of direct shear testing apparatus Tamrakar et al, 2005;Trabelsi et al, 2012). Indirect tests include the Brazilian tensile test (Frydman, 1964;Krishnayya and Eisenstein, 1974) & Hollow Cylinder Triaixial test (Alsayed, 2002).…”

Section: Introductionmentioning

confidence: 99%

Cyclic relationship between saturation and tensile strength in the near-surface zone of infrastructure embankments

Stirling¹,

Hughes²,

Davie³

et al. 2014

Unsaturated Soils: Research &Amp; Applications

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Section: Introductionmentioning

confidence: 99%

Cyclic relationship between saturation and tensile strength in the near-surface zone of infrastructure embankments

Stirling¹,

Hughes²,

Davie³

et al. 2014

Unsaturated Soils: Research &Amp; Applications

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“…As explained below, tensile failure tends to have an adverse effect on engineering. Shrinkage cracks caused by desiccation (Figure 1a) may affect the stability of the structures founded on soils [3]. A tensile crack produced on the upper surface of a shallow slope (Figure 1b) may induce a landslide.…”

Section: Introductionmentioning

confidence: 99%

“…The time effect of a tensile strength test under stress control has not been found in existing publications. Several theoretical models for the tensile strength of soils have been proposed [3,35], but there is little description of the corresponding soil fracture behavior.…”

Section: Introductionmentioning

confidence: 99%

Evaluation on Tensile Behavior Characteristics of Undisturbed Loess

Bai

2018

Energies

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Abstract:Tensile strength is one significant parameter involved in tensile fracture in soil mechanics. In this paper, a stress-controlled, uniaxial, direct-tension test apparatus was developed to investigate the tensile properties of soils. A limited number of investigations have examined the impact of anisotropy and loading interval on the tensile strength of undisturbed loess. The deformation and strains generated were also examined during the tests. It was revealed that anisotropy was an important factor affecting tensile strength of undisturbed loess, and the effect of loading interval on tensile strength significantly depended on water content. It was negligible while the water content was below the plastic limit. However, when the water content was above the plastic limit, the loading interval not only affected the tensile strength, but also the failure displacement and stiffness response of the soil. Two patterns of tensile fracture were summarized and discussed. Moreover, an empirical constitutive relation was proposed to describe the stress-strain relationship of undisturbed loess and its robustness was validated by the experimental data.

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“…Cracks are likely to occur if tensile stress generated in the soil exceeds the tensile strength of the soil. Desiccation cracking of clay soil is of critical importance in a variety of circumstances, from industry wastes, hydraulic barriers, road embankments, to agriculture practice [1][2][3][4][5]. Factors that influence cracking are known qualitatively, but it is not clear how to predict the initiation and the propagation of cracks.…”

Section: Introductionmentioning

confidence: 99%

“…Factors that influence cracking are known qualitatively, but it is not clear how to predict the initiation and the propagation of cracks. Some advances have recently been made in the modelling of desiccation cracking [5][6][7], but it still remains open. The phenomenon of crack initiation and propagation involves in the creation of a discontinuity that is difficult to capture using a continuous method [12].…”

Section: Introductionmentioning

confidence: 99%

Modelling desiccation cracking in thin clay layer using three-dimensional discrete element method

Sima

Jiang

Zhou

2013

AIP Conference Proceedings

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Abstract. Desiccation cracking of soils is of critical importance in many applications, such as industry wastes, hydraulic barriers, road embankments, and agriculture practice. This paper presented a numerical approach for modelling desiccation cracks in a thin clay layer with considering the changes in material properties during drying. Based on the micro-structure theory of clay, the swell and shrinkage behavior of clay could be explained by the swelling and shrinkage of aggregates. Therefore, an aggregates-shrinking model was proposed and its parameters were determined by matching the experimental data in literature. Then, the desiccation cracking of clay in plate shape was modeled by a three-dimensional discrete element code (PFC3D). The results obtained from the proposed numerical model had been compared with the experimental results in literature, which showed that the proposed DEM model can capture the initiation and propagation of cracks in a thin desiccated clay layer.

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Crack patterns in clayey soils: Experiments and modeling

Cited by 122 publications

References 61 publications

Cyclic relationship between saturation and tensile strength in the near-surface zone of infrastructure embankments

Cyclic relationship between saturation and tensile strength in the near-surface zone of infrastructure embankments

Evaluation on Tensile Behavior Characteristics of Undisturbed Loess

Modelling desiccation cracking in thin clay layer using three-dimensional discrete element method

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