FRACTURE SIMULATIONS OF CONCRETE USING LATTICE MODELS : COMPUTATIONAL ASPECTS
作者： E. Schlangen , E.J. Garboczi
DOI: 10.1016/S0013-7944(97)00010-6
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摘要: Abstract This paper addresses some lattice model techniques used in numerical simulations of fracture concrete and other random materials. The influence element type orientation on the pattern was investigated by simulating a shear loading experiment plate. Beam elements with three degrees freedom per node, beams within lattice, gave best comparison experiment. effect resolution results also investigated. A new law has been developed that uses principal tensile stresses each node to determine which beam should break at every step simulation. For implementation heterogeneity model, method digital images real microstructure material. Simulated crack patterns were obtained for material, using this technique, appear quite realistic.
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