Publication

Desiccation cracking of soils: modeling of stress generation and crack propagation

Lyesse Laloui, Hervé Péron
2008
Conference Papers

Abstract

This paper is an experimental and numerical investigation of desiccation and the associated cracking. First an elastic formulation of the hydro-mechanical problem is presented, based on an analogy that can be drawn with thermo-elasticity. Then, the results of an experimental program are given, aiming at characterizing drying shrinkage strains and water content evolution, as well as the associated cracking and the value of the tensile strength. The validity of the modelling approach is shown in the light of finite element simulations of the desiccation cracking tests; the approach embeds crack propagation feature. Finally, the results of the modelling are discussed, which leads to some comments regarding the mechanisms of desiccation crack patterns formation.

Official source

https://infoscience.epfl.ch/entities/publication/9ac1f662-7eeb-40cf-95e8-f925977d6261

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Lyesse Laloui, Hervé Péron
2008
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/9ac1f662-7eeb-40cf-95e8-f925977d6261

About this result

Ontological neighbourhood

Chemical engineering

Materials science: Deformation of materials

Related concepts (28)

Ultimate tensile strength

Ultimate tensile strength (also called UTS, tensile strength, TS, ultimate strength or in notation) is the maximum stress that a material can withstand while being stretched or pulled before breaking. In brittle materials the ultimate tensile strength is close to the yield point, whereas in ductile materials the ultimate tensile strength can be higher. The ultimate tensile strength is usually found by performing a tensile test and recording the engineering stress versus strain.

Compressive strength

In mechanics, compressive strength (or compression strength) is the capacity of a material or structure to withstand loads tending to reduce size (as opposed to tensile strength which withstands loads tending to elongate). In other words, compressive strength resists compression (being pushed together), whereas tensile strength resists tension (being pulled apart). In the study of strength of materials, tensile strength, compressive strength, and shear strength can be analyzed independently.

Tensile testing

Tensile testing, also known as tension testing, is a fundamental materials science and engineering test in which a sample is subjected to a controlled tension until failure. Properties that are directly measured via a tensile test are ultimate tensile strength, breaking strength, maximum elongation and reduction in area. From these measurements the following properties can also be determined: Young's modulus, Poisson's ratio, yield strength, and strain-hardening characteristics.

Related publications (27)

Short-term behavior of glass fiber-polymer composite bending-active elastica beam under service load application

Thomas Keller, Landolf-Giosef-Anastasios Rhode-Barbarigos, Tara Habibi

Bending-active elastica beam is a structural configuration that is based on the elastic deformation of an initially straight beam. This deformation occurs when horizontal displacements are applied to a sliding support, causing the beam to bend into an arch ...

2024

Influence of fiber orientation on the tensile behavior of UHPFRC and reinforced UHPFRC under static and fatigue loadings

Jian Zhan

Ultra-high performance fiber reinforced cementitious composite (UHPFRC) is a modern class of cementitious building materials. Because of its superior mechanical properties and durability, it is increasingly used globally to rehabilitate, strengthen and mod ...

EPFL2024

Influence of model uncertainty and long term deformations in action effects calculation in reinforced concrete structures

Xhemsi Malja

Most codes of practice adopt a semi probabilistic design approach for the dimensioning and assessment of structures. Accordingly, structural safety is ensured by performing limit state verifications using design values determined with adequately calibrated ...

EPFL2024