Adaptive Through-Thickness Integration Strategy for Shell Elements


Share/Save/Bookmark

Burchitz, I.A. and Meinders, T. and Huetink, J. (2007) Adaptive Through-Thickness Integration Strategy for Shell Elements. In: International Conference in Numerical Methods in industrial Forming Processes, NUMIFORM 2007, June 17-21, 2007, Porto, Portugal (pp. pp. 699-704).

open access
[img]
Preview
PDF
645kB
Abstract:Reliable numerical prediction of springback in sheet metal forming is essential for the automotive industry. There
are numerous factors that influence the accuracy of springback prediction by using the finite element method. One of the
reasons is the through-thickness numerical integration of shell elements. It is known that even for simple problems the
traditional integration schemes may require up to 50 integration points to achieve a high accuracy of springback analysis.
An adaptive through-thickness integration strategy can be a good alternative. The strategy defines abscissas and weights
depending on the integrand's properties and, thus, can adapt itself to improve the accuracy of integration. A concept of the
adaptive through-thickness integration strategy for shell elements is presented. It is tested using a simple problem of bending
of a beam under tension. Results show that for a similar set of material and process parameters the adaptive Simpson's rule
with 7 integration points performs better than the traditional trapezoidal rule with 50 points. The adaptive through-thickness
integration strategy for shell elements can improve the accuracy of springback prediction at minimal costs
Item Type:Conference or Workshop Item
Faculty:
Engineering Technology (CTW)
Research Chair:
Research Group:
Link to this item:http://purl.utwente.nl/publications/59686
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page