Consistency in Solving the Inverse Problem of the Voce-Chaboche Constitutive Model for Plastic Straining

AbstractThis paper focuses on an inverse problem involving a commonly used material model in structural steel applications—the Voce-Chaboche model. In particular, the paper proposes an approach focused on obtaining a consistent set of material parameters that accurately represents a wide range of me...

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Bibliographic Details
Published in:Journal of engineering mechanics 2020-09, Vol.146 (9)
Main Authors: de Castro e Sousa, Albano, Suzuki, Yusuke, Lignos, Dimitrios
Format: Article
Language:English
Subjects:
Constitutive models
Cyclic loads
Earthquake loads
Inverse problems
Load history
Mathematical models
Parameters
Plastic deformation
Seismic engineering
Structural steels
Technical Papers
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Summary:AbstractThis paper focuses on an inverse problem involving a commonly used material model in structural steel applications—the Voce-Chaboche model. In particular, the paper proposes an approach focused on obtaining a consistent set of material parameters that accurately represents a wide range of mechanical uniaxial cyclic load histories. The main focus of the methodology presented here is its application to structural steels in the field of earthquake engineering. A set of load protocols representative of seismic loading are proposed for this purpose. It is shown that the calibration procedure optimally leverages Voce-Chaboche’s ability to describe the material response to an arbitrary load history. Parameters for prevailing American, European, and Japanese structural steels are also proposed.
ISSN:0733-9399
1943-7889
DOI:10.1061/(ASCE)EM.1943-7889.0001839