Modelling of ‘no-tension’ interfaces

Abstract The differences between two common approaches to the modelling of interfaces are discussed. Though very similar, the two different approaches lead to rather different results, qualitatively as well as quantitatively, when applied to typical boundary value problems. This is demonstrated with respect to the undrained bearing capacity of a strip footing subjected to general loading. Finally, the results of the two approaches are compared to common analytical bearing capacity expressions where similar differences are observed.