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2. Materials: volume and surface properties
2.1 Volume properties of materials
The method of manufacturing a thin sheet for bodywork is described on 4 . These are very low-carbon steel sheets (yield strength R e ~ 160 to 200 MPa) whose high formability is ensured by the high value of their elongation at breakA (∼ 35 to 45%) and their normal anisotropy coefficienter (∼ 1.7 to 1.85) ( 1 ). For a definition of the normal anisotropy coefficient, please refer to
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Materials: volume and surface properties
Plastic deformation modes and contact conditions
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