Publication

Numerical modelling of desiccation cracking of soils

Lyesse Laloui, Hervé Péron
2008
Conference Papers

Abstract

In this paper, desiccation and the associated cracking are numerically and experimentally investigated. First an elastic formulation of the hydro-mechanical problem is presented. The results of desiccation cracking tests are given. The validity of the modelling approach is shown in the light of finite element simulations, embedding crack propagation feature. The origins of desiccation crack patterns and their modelling are discussed.

Official source

https://infoscience.epfl.ch/entities/publication/43d2b330-77bf-4791-9f20-1bcfb7a38b4b

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Lyesse Laloui, Hervé Péron
2008
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/43d2b330-77bf-4791-9f20-1bcfb7a38b4b

About this result

Related concepts (15)

Linear elasticity

Linear elasticity is a mathematical model of how solid objects deform and become internally stressed due to prescribed loading conditions. It is a simplification of the more general nonlinear theory of elasticity and a branch of continuum mechanics. The fundamental "linearizing" assumptions of linear elasticity are: infinitesimal strains or "small" deformations (or strains) and linear relationships between the components of stress and strain. In addition linear elasticity is valid only for stress states that do not produce yielding.

Elasticity (physics)

In physics and materials science, elasticity is the ability of a body to resist a distorting influence and to return to its original size and shape when that influence or force is removed. Solid objects will deform when adequate loads are applied to them; if the material is elastic, the object will return to its initial shape and size after removal. This is in contrast to plasticity, in which the object fails to do so and instead remains in its deformed state. The physical reasons for elastic behavior can be quite different for different materials.

Viscoelasticity

In materials science and continuum mechanics, viscoelasticity is the property of materials that exhibit both viscous and elastic characteristics when undergoing deformation. Viscous materials, like water, resist shear flow and strain linearly with time when a stress is applied. Elastic materials strain when stretched and immediately return to their original state once the stress is removed. Viscoelastic materials have elements of both of these properties and, as such, exhibit time-dependent strain.

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