RT Journal Article ID 3d5dd95457de5d00 A1 Konke, Carsten A1 Eckardt, Stefan A1 Hafner, Stefan A1 Luther, Torsten A1 Unger, Jorg T1 Multiscale Simulation Methods in Damage Prediction of Brittle and Ductile Materials JF International Journal for Multiscale Computational Engineering JO JMC YR 2010 FD 2009-09-22 VO 8 IS 1 SP 17 OP 36 K1 heterogeneous materials K1 multiscale simulations K1 damage K1 fracture K1 multigrid solver techniques AB The damage and fracture behavior of technical as well as biological materials in engineering structures is nowadays often described by continuum damage theories or linear and nonlinear fracture mechanics on the macroscale. A major drawback of these approaches is their inability to consider the inherent microstructure of materials that governs the damage and fracture behavior. Although classical material models on the macroscale have the advantage to be easily applicable in simulations of large-scale engineering structures, the experimental determination of necessary material parameters, especially for the description of material damage effects, is demanding and often a direct identification of these parameters from experiments is not possible at all. Furthermore, these continuum-based models are not capable of explicitly describing all physical material effects, such as decohesion between grain and matrix material and the resulting microcrack evolution in cementitious materials. At the meso- and microscales, the material microstructure and therewith also the material heterogeneity on finer scales is described explicitly. Even with today's computational power, it is not affordable to simulate whole large structures on the meso- or microscale, and a coupling between models on different spatial scales (e.g., meso- and macroscale) becomes necessary. The resulting integrated multiscale models can be applied for the simulation of large-scale constructional components and to obtain detailed information on local microdamage effects at the same time. PB Begell House LK https://www.dl.begellhouse.com/journals/61fd1b191cf7e96f,771f054c69c4607e,3d5dd95457de5d00.html