An experimental and numerical study of a planar blanking process

Aiming at a validated model of the blanking process, an in situ study of th e displacement and strain fields is carried out in a blanking experiment us ing a digital image correlation technique. Specimens of 13% Cr steel, 1 mm thick, are blanked at low speed, using a planar configuration with two diff erent clearances (2 and 10% of the specimen thickness). In addition to the displacement and strain fields, load-penetration curves are also determined for both clearances. The experimental results are in good agreement with n umerical simulations, the latter of which are carried out using a plane-str ain finite-element model based on an operator split arbitrary Lagrange Eule r (OS-ALE) method. (C) 1999 Elsevier Science S.A. All rights reserved.