Validation of a New Finite Element for Incremental Forming Simulation Using a Dynamic Explicit Approach


Article Preview

A new method for modeling the contact between the tool and the metal sheet for the incremental forming process was developed based on a dynamic explicit time integration scheme. The main advantage of this method is that it uses the actual contact location instead of fixed positions, e.g. integration or nodal points. The purpose of this article is to compare the efficiency of the new method, as far as accuracy and computation time are concerned, with finite element simulations using a classic static implicit approach. In addition, a sensitivity analysis of the mesh density will show that bigger elements can be used with the new method compared to those used in classic simulations.



Main Theme:

Edited by:

F. Micari, M. Geiger, J. Duflou, B. Shirvani, R. Clarke, R. Di Lorenzo and L. Fratini




C. Henrard et al., "Validation of a New Finite Element for Incremental Forming Simulation Using a Dynamic Explicit Approach", Key Engineering Materials, Vol. 344, pp. 495-502, 2007

Online since:

July 2007




[1] C. Henrard, A.M. Habraken, A. Szekeres, J.R. Duflou, S. He, A. Van Bael and P. Van Houtte: Comparison of FEM Simulations for the Incremental Forming Process, Advanced Materials Research, Vols. 6-8 (2005).


[2] J. Jeswiet, F. Micari, G. Hirt, A. Bramley, J. Duflou and J. Allwood: Asymmetric Single Point Incremental Forming of Sheet Metal, CIRP Annals, Vol. 54/2 (2005), pp.623-649 (Technische Rundschau, Bern, Switzerland).


[3] S. Cescotto and H. Grober: Calibration and Application of an Elastic-Visco-Plastic Constitutive Equation for Steels in Hot-Rolling conditions, Engineering Computations, Vol. 2 (1985), pp.101-106.


[4] A.M. Habraken and C. Cescotto: Contact between Deformable Solids, the Fully Coupled Approach, Mathematical and Computer Modeling, Vol. 28/4-8 (1998), pp.153-169.


[5] C. Henrard, C. Bouffioux, A. Godinas and A.M. Habraken: Development of a Contact Model Adapted to Incremental Forming, Proc. of the 8th Esaform conference, Vol. 1 (2005), pp.117-120.

[6] Y.Y. Zhu and S. Cescotto: Transient Thermal and Thermomechanical Analysis by F.E.M., Computers and Structures, Vol. 53-2 (1994), pp.275-304.


[7] J. Wang and R.H. Wagoner: A New Hexahedral Solid Element for 3D FEM Simulation of Sheet Metal Forming, Proc. of the 8th NUMIFORM conference, 2004, pp.2181-2186.


[8] P. Jetteur and S. Cescotto: A Mixed Finite Element for the Analysis of Large Inelastic Strains, International Journal for Numerical Methods in Engineering, Vol. 31 (1991), pp.229-239.