Affiliation:
1. Friedrich-Alexander University Erlangen-Nuremberg
Abstract
Inverse form finding aims to determine the optimum blank design of a workpiece whereby the desired spatial configuration that shall be obtained after a forming process, the boundary conditions and the applied loads are known. As a verification of the optimal material configuration a subsequent direct FEM computation has to result in the desired shape of the deformed workpiece. In this contribution the inverse FEM, which formulates the mechanical weak form in the spatial configuration and solves it with respect tothe material configuration, is used to obtain an admissible blank configuration. An example of applying this inverse method to a contact forming simulation is presented.To this end a FE-code applicable to use the inverse mechanical formulation is coupled with the commercial software MSC.Mentat. In the inverse computation the contact problem is approximated by displacement control.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference13 articles.
1. Germain S., Steinmann P., Shape optimization for anisotropic elastoplasticity in logarithmic strain space, Proceedings of the XI Int. Conf. on Computational Plasticity, ISBN: 978-84-89925- 73-1, 1479-1490 (2011).
2. Acharjee S., Zabaras N., The continuum sensitivity method for computational design of threedimensional deformation processes, Comput. Methods Appl. Mech. Engrg., 195, 6822-6842 (2006).
3. Germain S., Steinmann P., A comparison between inverse form finding and shape optimization methods for anisotropic hyperelasticity in the logarithmic strain space, PAMM, Proc. Appl. Math. Mech., 11, 367-368 (2011).
4. Govindjee S., Mihalic P.A., Computational Methods for Inverse Finite Elastostatics, Comput. Methods Appl. Mech. Engrg., 136, 47-57 (1996).
5. Germain S., Scherer M., Steinmann P., On inverse form finding for anisotropic hyperelasticity in the logarithmic strain space, International Journal of structural changes in solids, 2, Number 2, 1-16 (2011).
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献