Determination of GISSMO Damage Parameters for High-Speed Blanking of 22MnB5 and EN AW-5754
Loading...
Files
Date
2025-08-26
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Alternative Title(s)
Abstract
High-speed blanking (HSB) of high-strength materials, such as the steel 22MnB5, is an
established method that delivers high-quality cut surfaces. Due to high shear rates, this
process is associated with the formation of adiabatic shear bands (ASB) in the blanking
zone. For an in-depth analysis of the effects arising in this process and to support the
prototyping of blanking tools, a numerical simulation is required. For this purpose, material
parameters, which are valid at elevated strain rates are necessary. In this study, the
parameter identification for the GISSMO damage model is presented. For the parameter
identification, a series of coupled experimental and numerical investigations were carried
out on 22MnB5 and EN AW-5754 with a sheet thickness of 2 mm. The main objective was to
determine the damage and failure behaviour of the investigated materials under different
loading modes (or triaxialities). The resulting data was used as input for the subsequent
optimisation of the parameters in LS-DYNA and LS-OPT.
Description
Table of contents
Keywords
FE-Simulation, Damage model, high-speed, LS-DYNA
Subjects based on RSWK
Stanzen, Hochgeschwindigkeitsbearbeitung, Werkstoffschädigung, Modellierung, Aluminiumlegierung, Mangan-Bor-Stahl, Simulation