Titlebook: Nonlinear Crack Models for Nonmetallic Materials; Alberto Carpinteri (Chair of Structural Mechanics) Book 1999 Springer Science+Business M

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Introduction, field is assumed to be unlimited [1,2]. On the other hand, in real materials the energy dissipation anticipating the crack advancement is diffused in a damaged zone ahead of the crack tip, which is of a finite size and where the stress field is finite. If the mechanical behaviour of the bulk materi

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The Cohesive Crack Model,he deformation in a narrow band, where energy dissipation occurs. The behaviour of the material outside this band is still linear and elastic. This phenomenon, observed experimentally by L’Hermite [1], Rusch and Hilsdorf [2], Hughes and Chapman [3], Evans and Marathe [4], among others, must be taken

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The Bridged-Crack Model,mation of a very narrow band where nonlinear deformation occurs. This localized band, or ., arises and evolves during the loading process leading to the real fracture. It typically consists of a microcracking region, near the tip of the macrocracks, and a bridging region, along the wake of the macro

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The Microcrack-Interacting Model,racking during the evolution of fracture processes. In specimens for laboratory tests, some macroscopic cracks are detected in the proximity of the collapse load, originating either from the propagation of pre-existing notches or as a consequence of growth and coalescence of flaws and defects presen

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