On the pseudomaterial approach for the analysis of transient forming processes | Zendy

Cruchaga M. | Zendy; Oñate E. | Zendy; Idelsohn S. | Zendy

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On the pseudomaterial approach for the analysis of transient forming processes

Author(s) -

Cruchaga M.,

Oñate E.,

Idelsohn S.

Publication year - 1995

Publication title -

communications in numerical methods in engineering

Language(s) - English

Resource type - Journals

eISSN - 1099-0887

pISSN - 1069-8299

DOI - 10.1002/cnm.1640110207

Subject(s) - transient (computer programming) , boundary value problem , lagrangian , flow (mathematics) , transient flow , mechanics , boundary (topology) , finite element method , geometry , porosity , transient analysis , mathematics , mathematical analysis , computer science , materials science , transient response , geology , physics , structural engineering , engineering , composite material , electrical engineering , surge , operating system , geomorphology

A fixed‐mesh method for the analysis of transient forming processes is presented. The mesh covers material regions and zones through which the material may flow. These last zones are identified by a pseudomaterial with relatively small physical parameters. During time processing, the interface between both materials is followed by an arbitrary Lagrangian mesh. This technique appears to be suitable for the treatment of moving surfaces with sharp corners. A particular boundary condition for the Navier‐Stokes equations is also introduced in order to model a porous wall.

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