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This LS DYNA simulation shows the dynamic response of a
19x19 mm cross section O-Flex energy absorber impacted by a
10 lbm spherical ball at a speed of 5 mph. The O-Flex energy
absorber is mounted to an infinitely rigid background plate.
The acceleration vs. time “green” curve is a near perfect
“square wave” with low peak acceleration absorbing 100% of
the FMVSS 201U head impact energy. |
This LS_DYNA simulation shows the dynamic response of two
70x45 mm cross section O-Flex energy absorbers impacted by a
13.3 KG pedestrian lower leg form at 40 KPH when mounted to
a typical front bumper beam. The bumper system absorbed 100%
of the impact energy with peak acceleration well below the
150G upper test limit |
This LS_DYNA simulation shows a 10 lbm FMVSS 201U head
form impacting O-Flex 3101 energy absorber at 40 KPH
demonstrating a near perfect square response at both high
and lower impact velocities confirming test correlations. |
This LS_DYNA simulation shows the FMVSS 201U free motion
head form in vehicle test. The head form is shown impacting
a sport car A-pillar with six O-Flex axial mounted energy
absorbers. The six O-Flex energy absorbers are mounted
between the inner plastic cover and outer body sheet metal
background. This design approach replaces all trim cover
“plastic injection molded dog house” attachments with a net
system cost savings |
