Application of evolutionary strategies to industrial forming simulations for the identification and validation of constitutive laws

Leiden Repository

Application of evolutionary strategies to industrial forming simulations for the identification and validation of constitutive laws

Title: Application of evolutionary strategies to industrial forming simulations for the identification and validation of constitutive laws
Author: Heinle, Ingo Matthias
Publisher: Leiden Institute of Advanced Computer Science (LIACS), Faculty of Science, Leiden University
Issue Date: 2012-05-29
Keywords: Calibration
Constitutive laws
Evolutionary strategies
Experiments
One dimensional strategies
Optimization
Scalarization
Sheet metal forming
Validation
Yield locus
Abstract: In the last decade, the deployment of simulation systems in the automotive industry on the basis of the finite element method (FEM) became a standard for the evaluation of sheet metal forming processes. The technical and economic benefits of the FEM based simulation strongly depends on the accuracy of the computed prediction. The predictive capability of FEM based simulations is mainly determined by the chosen physical theory and its numerical solution. This thesis focuses on the application of optimization algorithms for the identification and validation of material models, which belong to the group of the constitutive laws. The objective of this thesis is threefold: Firstly, the identification of potentials regarding the material models in order to maximize the benefit of the FEM forming simulation and, secondly, the development of an identification and validation procedure for material models. Finally, the effect of the deviations between the measured data and the true values of the calibration experiments on the predictive capability of material models is investigated
Description: Promotor: T.H.W. Bäck
With summary in Dutch
Faculty: Faculteit der Wiskunde en Natuurwetenschappen
Citation: Heinle, I., 2012, Doctoral thesis, Leiden University
ISBN: 9789461912602
Handle: http://hdl.handle.net/1887/19028
 

Files in this item

Description Size View
application/pdf Full text 4.775Mb View/Open
application/pdf Title page_Contents 134.6Kb View/Open
application/pdf Chapter 1 Introduction 126.2Kb View/Open
application/pdf Chapter 2 433.4Kb View/Open
application/pdf Chapter 3 271.2Kb View/Open
application/pdf Chapter 4 381.0Kb View/Open
application/pdf Chapter 5 601.7Kb View/Open
application/pdf Chapter 6 565.8Kb View/Open
application/pdf Chapter 7 479.3Kb View/Open
application/pdf Chapter 8 1.251Mb View/Open
application/pdf Chapter 9 409.7Kb View/Open
application/pdf Chapter 10 255.6Kb View/Open
application/pdf Chapter 11 Summary and outlook 142.5Kb View/Open
application/pdf Appendices 1.162Mb View/Open
application/pdf Bibliography 150.7Kb View/Open
application/pdf Summary in Dutch 106.7Kb View/Open
application/pdf About the author 85.72Kb View/Open

This item appears in the following Collection(s)