Complas 2023

COMPLAS 2023

Improved Sheet Metal Forming Simulations using higher Order Shell Elements

Willmann, Tobias (University of Stuttgart)
Schilling, Maximilian (University of Stuttgart)
Ramm, Ekkehard (University of Stuttgart)
Bischoff, Manfred (University of Stuttgart)

In session: WEa-1400a - - CT1400a - Manufacturing and Material Forming Processes

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In sheet metal forming low order shell formulations are not sufficient whenever warped cross sections and highly non-linear stress and strain distributions occur across the thickness. In the present study high order formulations are applied allowing for up to a cubic displacement field in thickness direction. These in turn may lead to previously unknown undesired stiffening effects, which are also discussed in the contribution. The time-step size estimation in explicit dynamic simulations using data driven methods material modelling is addressed. Finally, the results of simulations with higher order elements are presented.