Characterization of random stress fields obtained from polycrystalline aggregate calculations using multi-scale stochastic finite elements

The spatial variability of stress fields resulting from polycrystalline aggregate calculations involving random grain geometry and crystal orientations is investigated. A periodogram-based method is proposed to identify the properties of homogeneous Gaussian random fields (power spectral density and...

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Veröffentlicht in:	arXiv.org 2015-01
Hauptverfasser:	Sudret, Bruno, Dang, Hung Xuan, Berveiller, Marc, Zeghadi, Asmahana, Yalamas, Thierry
Format:	Artikel
Sprache:	eng
Schlagworte:	Covariance Crystal structure Deformation Finite element method Mathematical analysis Polycrystals Power spectral density Stochastic processes Stress distribution
Online-Zugang:	Volltext
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