2019
DOI: 10.1002/gamm.201900006
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Modeling of structures with polymorphic uncertainties at different length scales

Abstract: Multiscale analyses require to consider the scale bridging influences of uncertain parameters. In this paper, approaches for polymorphic uncertainty quantification at different length scales are presented. Especially, the effect of uncertain material parameters computed at lower structural scales is investigated with respect to the resulting macroscopic structural behavior. Also the dependencies of uncertain parameters at the macroscale on the structural response evaluated with submodels are discussed. Three e… Show more

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“…The effective coefficients of the stiffness tensor (if Hooke's law is assumed on both length scales, see [7]) are determined by numerical material testing (see [8]). By introducing the Hill-Mandel condition [9] (in case of small strains) σ σ σ : ε ε ε = σ σ σ : ε ε ε, boundary conditions, such as e.g.…”
Section: Homogenization Approach Incorporating Uncertaintiesmentioning
confidence: 99%
“…The effective coefficients of the stiffness tensor (if Hooke's law is assumed on both length scales, see [7]) are determined by numerical material testing (see [8]). By introducing the Hill-Mandel condition [9] (in case of small strains) σ σ σ : ε ε ε = σ σ σ : ε ε ε, boundary conditions, such as e.g.…”
Section: Homogenization Approach Incorporating Uncertaintiesmentioning
confidence: 99%