Strain and stress distributions in flexible pavements under moving loads

Autor:	Jacques Perret, André-Gilles Dumont
Rok vydání:	2004
Předmět:	Stress (mechanics) Materials science Scale (ratio) Strain (chemistry) business.industry Linear elasticity Levy–Mises equations Structural engineering Stress distribution business Stress study Viscoelasticity Civil and Structural Engineering
Zdroj:	Road Materials and Pavement Design. 5:203-225
ISSN:	2164-7402 1468-0629
Popis:	Calculated strain distributions in flexible pavements were studied by comparison with measurements made on full-scale structures. The calculated results were obtained by elastic and viscoelastic modelling of these structures. As no stress measurements were collected, the stress distribution was studied by comparing the results of elastic and viscoelastic calculations. For different loading and temperature conditions, and assuming the hypothesis of the French design method for flexible pavements, modelling provided strain signals similar to those measured on real scale structures for strains at two different depths in the studied structures. This first conclusion was used to validate the models, which were then used in the stress study. Some unexpected strains variations were observed near to the surface of the structures. Modelling based on linear elastic behaviour of the materials made it possible to explain these variations by analysing the stress variations, particularly in the vertical direct...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dcaddf58a457913a3b9d2725bd49c3d8 https://doi.org/10.1080/14680629.2004.9689993 Zobrazit plný text záznamu