INVERSE COMPUTATIONAL DETERMINATION OF JOHNSON-COOK PARAMETERS USING THE SHPB TEST APPARATUS

INVERSE COMPUTATIONAL DETERMINATION OF JOHNSON-COOK PARAMETERS USING THE SHPB TEST APPARATUS

The paper describes determination of the material parameters of the Johnson-Cook constitutive model of steel S235 JR sample material by applying the inverse computational methodology using the digital twin model of the SHPB. A quasi-static tensile testing of bulk material was conducted first to deter...

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Bibliographic Details
Main Authors: Anja Mauko, Branko Nečemer, Zoran Ren
Format: Article
Language:English
Published: Czech Technical University in Prague 2019-12-01
Series:Acta Polytechnica CTU Proceedings
Subjects:
shpb test apparatus, johnson-cook constitutive model, inverse determination, neldermead optimization, computer simulations
Online Access:https://ojs.cvut.cz/ojs/index.php/APP/article/view/6027
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