The
5th International Symposium on Human Modeling and Simulation in
Automotive Engineering took place in Munich on October 16-17, 2014
providing presentations on all aspects of digital human models in
automotive development.
The symposium included comprehensive summaries of the current versions of
THUMS (Toyota Motor Corporation) and
GHBM (Virginia Tech and
Nissan NA) and of
translations of those models from one crash code to another (
ESI and
Altair).
Chalmers University of Technology analysed THUMS 3 and GHBM responses to
low g-level loading finding that limitations of current models can be found in response to gravity and neck shear underestimation.
Volkswagen highlighted the influence of superficial
soft tissue properties for simulating occupants’ kinematics in
pre-crash loading scenarios.
Virtual Vehicle Graz presented final results of the OM4IS projects
including volunteer test data in pre-crash loading scenarios and
simplified
modelling approaches to account for
muscle activity.
Daimler showed current studies on integrating
Hill-type muscle models into their version of THUMS 3.
German Federal Highway Research Institute (
BASt) and
Toyota Motor Corporation used the recently developed THUMS 10YO to analyse
kinematics and interaction with the
belt of the
Q10
dummy in frontal sled tests. Differences in kinematics were attributed
to the stiff Q10 spine, thoracic load distribution deserves further
attention.
Autoliv demonstrated, using their version of THUMS 3 thorax that the
probabilistic rib fracture prediction,
as opposed to element elimination, allows a detailed representation of
field quantities related to injury risk and can account for variations
of mechanical parameters in the population.
The AsPeCSS project presented by
Toyota Motor Europe demonstrated advantages of THUMS 4 over simplified mutli-body models in
pedestrian load cases and suggested FE models as a basis for NCAP procedures analyses.
LAB gave an outlook on the PIPER project developing open source tools for
positioning and personalising HBMs and improving child models.
University of Strasbourg presented updates on their head/neck FE model SUFEHM including a recently established criterion for
skull fracture and the derivation of an anisotropic hyper-viscoelastic
constitutive model of the brain with particular focus on white matter (axons).
Wayne State University provided an outlook for next generation FE analysis of injury mechanics demonstrating how a
FE model of a single axon
can be built using multi-scale approaches. Relating simulation results
to the biochemical processes within an axon may lead to an explanation
for healthy and injured axons appearing side by side in the brain white
matter.
The programme was completed by overviews on geometry
acquisition, industrial safety applications and on state-of-the-art
models for seating comfort evaluation and muscle modelling.
Harmonisation was pointed out in the final discussion to be a crucial
challenge for further developments in the application of human models in
automotive development.
More information
