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Document type:
Zeitschriftenaufsatz 
Author(s):
Khristenko, Ustim; Constantinescu, Andrei; Tallec, Patrick Le; Wohlmuth, Barbara 
Title:
Statistically equivalent surrogate material models: Impact of random imperfections on the elasto-plastic response 
Abstract:
Manufactured materials usually contain random imperfections due to the fabrication process, e.g., the 3D-printing, casting, etc. These imperfections affect significantly the effective material properties and result in uncertainties in the mechanical response. Numerical analysis of the effects of the imperfections and the uncertainty quantification (UQ) can be often done by use of digital stochastic surrogate material models. In this work, we present a new flexible class of surrogate models depen...    »
 
Keywords:
Additive manufacturing, Surrogate model, Random fields, Stochastic optimization, Uncertainty quantification, Elasto-plastic material 
Journal title:
Computer Methods in Applied Mechanics and Engineering 
Year:
2022 
Pages contribution:
115278 
Print-ISSN:
0045-7825