Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fracture Criteria for Fissured Clays under Mixed-Mode Loading
Stiff clays forming part of earth dams and natural slopes contain fissures or cracks in their structure. These cracks are subjected in the field to a combination of normal and shear stresses (mixed-mode type of loading). Under tis type of loading, the cracks concentrate stresses at their tips that cause the failure of the intact clay surrounding the cracks. This failure is in the form of secondary cracks that propagate from the tips of the original cracks. Six fracture criteria exist to determine the direction of secondary cracks propagating in brittle materials. This study presents a review of three of these fracture criteria that are applicable to materials such as stiff clays. Using uniaxial and triaxial compressive tests on samples of stiff kaolinite clay with a pre-existing crack, the direction of crack propagation in the samples was best predicted by the Maximum Tangential Stress Criterion for sharp cracks.
Fracture Criteria for Fissured Clays under Mixed-Mode Loading
Stiff clays forming part of earth dams and natural slopes contain fissures or cracks in their structure. These cracks are subjected in the field to a combination of normal and shear stresses (mixed-mode type of loading). Under tis type of loading, the cracks concentrate stresses at their tips that cause the failure of the intact clay surrounding the cracks. This failure is in the form of secondary cracks that propagate from the tips of the original cracks. Six fracture criteria exist to determine the direction of secondary cracks propagating in brittle materials. This study presents a review of three of these fracture criteria that are applicable to materials such as stiff clays. Using uniaxial and triaxial compressive tests on samples of stiff kaolinite clay with a pre-existing crack, the direction of crack propagation in the samples was best predicted by the Maximum Tangential Stress Criterion for sharp cracks.
Fracture Criteria for Fissured Clays under Mixed-Mode Loading
Vallejo, L. E. (Autor:in)
Geo-Frontiers Congress 2011 ; 2011 ; Dallas, Texas, United States
Geo-Frontiers 2011 ; 3858-3867
11.03.2011
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Fracture Criteria for Fissured Clays under Mixed-Mode Loading
| British Library Conference Proceedings | 2011
Consolidation of fissured clays
| Online Contents | 1999
Consolidation of fissured clays
| British Library Online Contents | 1999
Nonlinear Stability Analysis in Fissured Clays
| British Library Conference Proceedings | 1995
Shear resistance of fissured Neogene clays
| British Library Online Contents | 1995