Table of Contents
Metals, Volume 8, Issue 8 (August 2018)
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Cover Story (view full-size image) Static dent resistance of thin steel sheet is influenced by bake hardening. To quantify [...] Read more. Static dent resistance of thin steel sheet is influenced by bake hardening. To quantify experimentally this effect, a pre-strain is applied with a hydraulic bulge test followed by a heat treatment and then static dent test is performed at the maximum dome height. An original phenomenological model is proposed to represent the yield stress increase after the heat treatment and the second reloading. Material parameters are identified from tensile tests and are input data to a finite element model. The numerical prediction of the load evolution during the dent test is then compared with experimental data and shows an overall good correlation. View this paper.