the constitutive modelling of concrete, a physical approach chosen. The structure of the material is reduced to its bare essence: an as- semblage of equal spheres in most dense configuration. are assumed to be rigid, whereas stiffness and strength are…
the constitutive modelling of concrete, a physical approach chosen. The structure of the material is reduced to its bare essence: an as- semblage of equal spheres in most dense configuration. are assumed to be rigid, whereas stiffness and strength are concentrated contact layers of equal thickness between the spheres. A physical criterion is introduced; cracks wil develop as soon as the tensile contact layer is exceeded in whatever direction. For ...., .... ,c..., ....... .,. .. ,,,'"' .... poses the assemblage of spheres is replaced by an equivalent or 3D-lattice. mechanical behaviour is basically linear v.iuc.:Jt-.t''-'· model is providing its own failure surface. Non effects are duced by subsequently changing properties the members in which the failure criterion been violated. In the paper a few simple models are reinvestigated, to show tations of 2D-models in respect to the location of a regular grid direction of uniaxial tensile and compressive loading. The objective is to obtain a better understanding of the stress transfer in the post peak re- gime. Results wil be used for a revaluation of the failure criterion macro model. Furthermore some failure criteria of other workers physical models are discussed.