An analytical investigation on the wrinkling of aluminium alloys during stamping using macro-scale structural tooling surfaces

Title: An analytical investigation on the wrinkling of aluminium alloys during stamping using macro-scale structural tooling surfaces
Author(s): Zheng, K
Lee, J
Politis, DJ
Li, N
Lin, J
Dean, TA
Item Type: Journal Article
Abstract: Structural surface texturing is believed to be a promising approach to modify tribological and thermal performances of tooling for sheet-stamping processes. However, a fundamental study on the surface-texturing design and resulting material deformation is currently lacking. In this paper, an advanced analytical buckling model specifically for the utilisation of textured tools at macro-scale, comprising dislocation-driven material model, isotropic yield criteria, bifurcation theory and Donnell-Mushtari-Vlasov (DMV) shell structure theory, was established. The developed analytical buckling model was validated by cylindrical deep-drawing experiments. Further finite element (FE) simulations with the implementation of material model via user-defined subroutine were also used to validate the bucking model for large surface texture designs. Effects of theoretical assumptions, such as yield criterion, boundary condition and test-piece geometry, on the accuracy of model prediction for wrinkling were investigated. It was found that the von Mises yield criterion and hinged boundary condition exhibited more accurate predictions. In addition, the DMV shell theory made this model most representative for large structural texturing designs. Furthermore, the implementation of induced shear strain component has an important effect on precisely predicting the wrinkling occurrence. The advanced analytical models developed in this study combine various classical mechanics, structure stability and material modelling together, which provides a useful tool for tooling engineers to analyse structural designs.
Publication Date: 27-Feb-2017
Date of Acceptance: 1-Feb-2017
URI: http://hdl.handle.net/10044/1/53247
DOI: https://dx.doi.org/10.1007/s00170-017-0121-8
ISSN: 0268-3768
Publisher: Springer Verlag
Start Page: 481
End Page: 495
Journal / Book Title: International Journal of Advanced Manufacturing Technology
Volume: 92
Issue: 1-4
Copyright Statement: © The Author(s) 2017. This article is published with open access at Springerlink.com
Keywords: Science & Technology
Technology
Automation & Control Systems
Engineering, Manufacturing
Engineering
Buckling model
Macro-textured tool
Aluminium alloys
Deep drawing
FE model
Flange wrinkling
DEEP-DRAWING PROCESS
ANNULAR PLATES
SHEET
Science & Technology
Technology
Automation & Control Systems
Engineering, Manufacturing
Engineering
Buckling model
Macro-textured tool
Aluminium alloys
Deep drawing
FE model
Flange wrinkling
DEEP-DRAWING PROCESS
ANNULAR PLATES
SHEET
09 Engineering
08 Information And Computing Sciences
01 Mathematical Sciences
Industrial Engineering & Automation
Publication Status: Published
Appears in Collections:Faculty of Engineering
Mechanical Engineering
Dyson School of Design Engineering



Items in Spiral are protected by copyright, with all rights reserved, unless otherwise indicated.

Creative Commons