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| Content Provider | EDP Sciences |
|---|---|
| Author | J.F. Shao J.P. Henry |
| Abstract | Des essais de compression isotrope et triaxiale de révolution jusqu’à des pressions de confinement de 50 MPa ont été effectués sur une craie blanche très poreuse. Les résultats obtenus ont permis de mettre en évidence les aspects fondamentaux de son comportement.Le modèle élasto-plastique à deux surfaces de charge de LADE a été utilisé pour la modélisation : certaines modifications importantes ont été proposées pour prendre en compte les particularités du comportement de la craie.Un premier test de validation du modèle proposé a été effectué dans des problèmes homogènes : chemins de sollicitations proportionnelles et d'extension latérale. De façon générale, de très bonnes concordances entre les résultats expérimentaux et la simulation par le modèle ont été obtenues.Un deuxième test de validation est présenté pour des champs de contraintes non uniformes : essais sur cylindres creux. Un programme de calcul en éléments finis, dans lequel le modèle de LADE modifié est introduit, a été mis au point et a servi à simuler ces essais. La comparaison entre l'expérience et la simulation a également été faite et permet d'apprécier la bonne aptitude du modèle à traduire le comportement de la craie. |
| Ending Page | 46 |
| Starting Page | 35 |
| Page Count | 12 |
| File Format | HTM / HTML PDF |
| ISSN | 01810529 |
| Alternate Webpage(s) | https://www.geotechnique-journal.org/articles/geotech/abs/1988/02/geotech1988043p35/geotech1988043p35.html |
| e-ISSN | 24938653 |
| Issue Number | 43 |
| Journal | Revue Française de Géotechnique |
| DOI | 10.1051/geotech/1988043035 |
| Language | French |
| Publisher | EDP Sciences |
| Publisher Date | 1988-01-01 |
| Access Restriction | Open |
| Rights Holder | © CFMS-CFGI-CFMR-CFG 1988 |
| Content Type | Text |
| Resource Type | Article |
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