CITA Comple Modelling

Page 174

STRESSED SKINS

MULTI SCALE MODELLING

time `= 1.23402E * 01 fringes of shell thickness min = 5.568E-01 in element 27870 max = 9.913E-01 in element 41139 integration point * 1

fringes levels 7.500E - 01 7.670E - 01

2

7.840E - 01 8.010E - 01 8.180E - 01 8.350E - 01 8.520E - 01 7

8.690E - 01 8.860E - 01 9.030E - 01

ROBOTIC INCREMENTAL SHEET FORMING

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STATE OF THE ART

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The project uses a Robotic Incremental Sheet Forming (RSIF) process to fabricate and rigidise an architectural stressed skin structure. A manipulative process for imparting 3D form onto thin metal sheet through highly localised plastic deformation, RISF differs from deep drawing and other common sheet metal forming techniques in that the final shape of the piece is fully determined by the movement of a simple tool moving continuously over the surface of the sheet (2). RISF extends the flexible Incremental Sheet Forming (ISF) manufacturing process first developed in Japan in the 1980s and 1990s (1).

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CITA Complex Modelling

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