Beyond failure in granular materials. (English) Zbl 0893.73047
The interrelations among different constitutive models of granular materials are discussed with special reference to failure and stability. For the hyperplastic constitutive equation, the accessible stress states and the stable stress states are found to be enclosed by a bound surface and a stability surface in the stress space, respectively. Theoretical findings about the bound surface and the stability surface are verified qualitatively by presenting results of triaxial tests on dry sand.
MSC:
| 74R99 | Fracture and damage |
| 74A20 | Theory of constitutive functions in solid mechanics |
| 74-05 | Experimental work for problems pertaining to mechanics of deformable solids |
Keywords:
constitutive models; hyperplastic constitutive equation; stable stress states; stability surface; stress spaceReferences:
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