Page 58 - Research Report 2021 - Institut für Leichtbau und Kunststofftechnik

K-Crash

Crash Simulation Technology for Composite-based
Novel Lightweight Structures

To establish composite materials for technical products, such as lightweight Period
body structures, any crash and impact events must also be taken into account 01.01.2018 – 30.06.2021
in the engineering process. In the K-Crash project, KIMS and ILK were investi-
gating the crash behaviour of a novel thermoplastic fibre composite material. Project management
Prof. Dr.-Ing. Niels Modler
In this context, tubular test specimens were investigated experimentally under
axial compressive loading and numerically on high-performance computing Contact
facilities at the ZIH of TU Dresden. A pronounced splaying failure of the speci- Holger Böhm
men was observed in the tests, which leads to a promising force-displacement Jonas Richter
response in terms of peak force and specific energy absorption. The local and Dr.-Ing. Andreas Hornig
time-related changes of deformation and damage were recorded via high-
speed cameras at a frequency of up to 30.000 frames per second. Computed Project partners
tomography was used to identify and evaluate the damage mechanisms. • Korea Institute of Materials Science
(KIMS)
The robust crash simulation at the structural level pursued the goal of a • Center for Information Services and
high-fidelity modelling approach taking into account every single ply and inter- High Performance Computing (ZIH)
faces of the composite layup. This allows the adequate representation of both at the TU Dresden
all relevant local deformation and damage phenomena under crash loading
and the resulting force-displacement response of the structure. Funding

Korea Institute of Materials Science (KIMS)

s = 2.6 mm s = 7.4 mm s = 12 mm s = 15 mm

s = 19 mm s = 23 mm s = 28.5 mm s = 31 mm
Failure pattern of half-circle specimen.

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