Methods of Solving the Problem of Singular Points in the Simulation of Plastic Forming by Finite Element Method

Pokras I.B., Akhmedzyanov E.R.

Abstract


The technique of solving the problem of singular points arising in the simulation of plastic forming by finite element method is offered. This technique is based on the formation of neighborhood of tool contact surface. When getting into this area, the node behaves as belonging to the tool contact surface that is acceptable because of initial mistakes of its construction by CAD tools. This approach reduces the number of simulated stages of deformation and cuts down the simulation time.

Keywords


forging process; modeling of plastic deformation; finite element method; singular point

References References

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Теория пластических деформаций металлов / Е. П. Унксов, У. Джонсон, В. Л. Колмогоров [и др.]. - М. : Машиностроение, 1983. - 598 с.

Ахмедзянов Э. Р. Особенности моделирования горячей объемной штамповки поковок с вытянутой осью // Вестник ИжГТУ. - 2001. - Вып. 2. - С. 37-40.


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ISSN 1813-7903 (Print)
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