On the performance of substructuring implicit simulation of single point incremental forming


Hadoush, A. and Boogaard, A.H. van den (2009) On the performance of substructuring implicit simulation of single point incremental forming. International Journal of Material Forming, 2 (Suppl. 1). pp. 559-562. ISSN 1960-6206

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Abstract:This paper investigates the computational performance of the direct substructuring method. Substructuring
is used to reduce the computing time in the implicit simulation of single point incremental forming (SPIF). Substructuring
divides the finite element (FE) mesh into several non-overlapped substructures. The substructures are categorized into
two groups: the plastic–nonlinear–substructures and the elastic–pseudo-linear–substructures. The plastic substructures
assemble a part of the FE mesh that is in contact with the forming tool; they are treated by the fully nonlinear method. The
elastic substructures model the elastic deformation of the rest of the FE mesh. Two approaches are used to treat the elastic
substructures: the linearized approach and the condensed linearized approach. In both approaches, the geometrical and
the material behaviour are assumed linear within the increment. The geometrical and material nonlinearity are considered
after convergence. Combined with the plastic substructures treatment, the approaches are refered to as the plastic linear
elastic (PLE) approach and the plastic condensed linear elastic approach (PCLE). The substructures categorization in
plastic and elastic substructures is adapted during the simulation to capture the tool motion. Different sizes for the
substructures are considered. In an example of 1600 shell elements, the best results achieved by the PLE speeding–up the
classical implicit simulation by 2.82 times.
Item Type:Article
Engineering Technology (CTW)
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Link to this item:http://purl.utwente.nl/publications/69340
Official URL:http://dx.doi.org/10.1007/s12289-009-0427-7
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