Minimum Plate Bend Radius
Minimum inside bend radius and radius-to-thickness multiple to avoid cracking the outer fiber, from the published forming-limit relation R_min = T x (50 / %elongation - 1) and the mill-cert elongation. A screen; the mill cert, grain direction, and a test bend govern.
Formula and source
Radius-to-thickness multiple R/T = 50 / %elongation - 1; minimum inside radius R_min = thickness x R/T.
Minimum inside bend radius from ductility - the published forming-limit relation R_min = T x (50 / %elongation - 1), by name; public domain.
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