|
|
||
|
|
|
|
“In the final mesh comprising 8150 elements and shown [here], as expected, the refinement covers the whole area under the blank holder to properly describe the new buckles developing in that region of the sheet.”
“[In conclusion] It has been demonstrated that the use of adaptive mesh refinement in wrinkling prediction analysis is a necessary approach for reducing the computational cost and better describing the wrinkling phenomena.”
FROM:
Selman, A. (1), Meinders, T. (2), Boogaard van den, A.H. (2) and Huetink, J. (2)
(1) Netherlands Institute for Metals Research Rotterdamseweg 137 – 2628 AL Delft The Netherlands, email:
(2) University of Twente Department of Mechanical Engineering P.O. Box 217 7500 AE Enschede – The Netherlands
“On adaptive mesh refinement in wrinkling prediction analysis”, In: fifth ESAFORM conference on Material Forming, April 14-17, 2002, Krakow, Poland
ABSTRACT: Hutchinson approach has been successfully used by a number of researchers in thin sheet metal forming processes for wrinkling prediction. However, Hutchinson approach is limited to regions of the sheet that are free of any contact. Therefore, a new wrinkling indicator that can be used in the contact areas is proposed. Discretisation error indicators are also used to present a comprehensive approach to wrinkling prediction analysis.
Page 146 / 410