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Identification of plastic material parameters with error estimation
Author(s) -
Unger Jaan,
Stiemer Marcus,
Svendsen Bob,
Blum Heribert
Publication year - 2005
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200510238
Subject(s) - sensitivity (control systems) , viscoplasticity , identification (biology) , inverse problem , context (archaeology) , inverse , propagation of uncertainty , mathematics , computer science , algorithm , engineering , finite element method , constitutive equation , structural engineering , geology , mathematical analysis , electronic engineering , geometry , paleontology , botany , biology
In recent years, inverse analysis has become a common approach to typical engineering problems such as model identification. In this contribution, the inverse problem is discussed in light of taking experimental uncertainties into account. This involves in particular the propagation of experimental errors and the analysis of the sensitivity of the model response to variations in the model parameters to be determined. The method is applied to an elasto‐viscoplastic material model which is used in the context of electromagnetic high‐speed forming. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)