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Pedestrian Impactors

Different developers support LS-DYNA models of the pedestrian impactors; Humanetics, OASYS (Ove Arup SYStems) and a consortium of Daimler, Porsche, Lasso and Peng (DPLP).

Several sets of pedestrian impactor models for the finite element code LS-DYNA are available. The models are distributed by DYNAmore in Germany, Italy, Austria, Poland, Spain, Switzerland, and neighboring countries.

Following you may find a short comparison of the head and leg form models developed by DPLP (a consortium of Daimler, Porsche, Lasso, and Peng), ARUP, LSTC, and FTSS. The human model THUMS developed by TOYOTA which is also used in pedestrian saftey is described at the following Link.

European and Japanese Headform Models

The head forms consists of a rigid sphere coated with a rubber hull. A triaxial accelerometer is fitted in the center of gravity.

Euro NCAP / J-NCAP Adult Headform Model (Weight: 4.5 kg; Diameter: 165 mm)

dplp-japan-adult-head-iso-jpg-png

DPLP:
Item# Number
Nodes19895
Shells3944
Solids16540

Adult Model 4.5kg

Oasys:
Item# Number
Nodes28696
Shells3712
Solids22240

Euro NCAP / J-NCAP Child Headform Model (Weight: 3.5 kg; Diameter: 165 mm)

dplp-acea-small-adult-head-iso-jpg-png

DPLP:
Item# Number
Nodes15347
Shells3618
Solids11778

Child Model 3.5kg

Oasys:
Item# Number
Nodes26450
Shells3712
Solids19808

Leg Form Model

dplp-lower-leg-iso-frei-jpg-png

DPLP:
Item# Number
Nodes60192
Shells24440
Solids42048

copy_of_oasys-lower-leg-iso-frei-jpg-png

Oasys:
Item# Number
Nodes21290
Shells10720
Solids14198

Upper Leg Form Model

dplp-upper-leg-iso-frei-jpg-png

DPLP:
Item# Number
Nodes40195
Shells40316
Solids25772

oasys-upper-leg-iso-frei-jpg-png

Oasys:
Item# Number
Nodes10968
Shells6356
Solids5898

Flexible Pedestrian Legform Model (Flex-PLI Regulated)

Flex-PLI hardware has undergone significant modifications since the GT version was introduced. The current design of the Flex-PLI hardware reflects meaningful and important changes to the earlier versions of the impactor. A completely new LS-DYNA model ( Flex PLI GTR Regulated) has now built, which represents the state-of-art regulated design of the Flex PLI GTR impactor. Current version is v1.0.1.

Flex-PLI Regulated_klein

Item# Number
Nodes127858
Shells102512
Solids111020