Naslov
Flow Formulation FE Metal Forming Analysis with Boundary Friction via a Penalty Function

Autori
Vučina, Damir

Izvornik
Journal of materials processing technology (0924-0136) 59 (1996), 3; 272-277

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Flow Formulation; Finite Element Analysis; Boundary Friction

Sažetak
The flow formulation finite-element analysis of stationary metal-forming processes is generalized to include strain-history sensitive materials and boundary friction. The strain history at a point is obtained by the determination of the respective point trajectory, along which the strain rate is integrated. Boundary friction is introduced by two different original numerical procedures: (i) by superposing additional frictional velocity-sensitive load on flow elements, and (ii) by introducing the Coulomb friction law as a penalized constraint at the element, edge or node level at the boundary interface. The resulting 2D FE procedures are developed and applied to materially non-linear analysis of idealized plane-strain rolling and extrusion. There is significant industrial significance in these procedures since they can be efficiently employed in simulations.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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