FraMCoS 2 1995 Zurich, Switzerland

Computational Aspects of Fracture Simulations with Lattice Models

This paper deals with some basic techniques used in numerical UJL ....... ._..,., ..... ,.,..._,JJLAU of fracture with lattice models. influence of the element type and orientation on the fracture pattern is shown by simulating an experiment on a concrete…

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Year 1995
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Abstract

This paper deals with some basic techniques used in numerical UJL ....... ._..,., ..... ,.,..._,JJLAU of fracture with lattice models. influence of the element type and orientation on the fracture pattern is shown by simulating an experiment on a concrete plate subjected to shear loading. It was found that beam ""1""'rnt::.•nt"c with three degrees of freedom per node, especially with a random of the beams in the lattice, give the best comparison with the ...,;,.~_,...,.._JUAJl""''LJl ... Yet, also the element size turned out to be important. A new is outlined which uses principal tensile stresses in each node of to determine the beam to break. implementation of the model a method is developed which uses digital images microstructure of a material. The crack patterns obtained from ..., ... JL .... ,,.. .. ...,..,.._,_,, ...... J on a lattice under a few basic loading conditions using very realistic.