Rupp et. al 2008

These are simulation setups designed to replicate the hub impact to the knee-thigh-hip complex carried out by Rupp et al. (2008). The full reference is provided at the end of this document.

Known issues

Peak forces measured in PMHS test could not be reproduced in the setup. Additionally, an initial pelvis rotation prior to the hub impact is observed.

PMHS reference data overview

There are three variants of the impactor setups, which which are documented by Rupp et al. (2008). The setups differ in terms of impactor velocity. The table below provides an overview of the differences.

Impact configuration	Impact velocity [m/s]
1	1.2
2	3.5
3	4.9

The characteristics of all PMHS used in these tests are provided in the table below.

Subject Number	Weight (kg)	Height (cm)	Age (yrs)
0709	86	183	61
0710	91	175	67
0711	82	175	87
0712	91	183	46
0713	82	178	77
Average	86.4	178.8	67.6

Instructions

Follow the General Instructions for setting up your simulations. Make sure that all required outputs are available in the simulation output files (e.g. binout when using LS-Dyna) in an appropriate time frequency!

A detailed guide with illustrations and information on the modelling and validation of the foam pads are provided in the Documentation_KTH.pdf.

Please report all new issues you encounter.

Directory structure

• A Jupyter notebook for postprocessing results using Dynasaur will be provided with a future update.

rupp_2008
│   Documentation_KTH.pdf
│   LICENSE
│   README.md
│   Rupp_2008_assessment.ipynb
│   Version vX.X.X.md
│   00_Master_KTH.k
│
├───data
│   ├───examples
│   │
│   ├───experiment
│   ├───metadata
│   │   │   00_Rupp_env_ID.def
│   │   │   00_Rupp_hub_ID.def
│   │   │   00_THUMS_v4.1_05F_IDs.def
│   │   │   00_THUMS_v4.1_50M_IDs.def
│   │   │   00_VIVA+_50F_IDs.def
│   │   │   01_units_ms_mm_kg.def
│   │   │   01_units_s_mm_ton.def
│   │   │   02_quality_criteria.def
│   │   │   04_hub.def
│   │   │   ls_user_function.py
│   │
│   └───processed
│       ├───figures
│       │
│       └───sim_results
│
├───sim_results
│       _copy_your_binouts_here.txt
│
├───_env
│       00_Database_Control.k
│       01_Boundary_Condition.k
│       02_Seat.k
│       03_Impactor_base.k
│       04a_Impactor_foam_1_2.k
│       04b_Impactor_foam_3_5__4_9.k
│       05_Calculations.k
│       06_Footrest.k
│       07_Position_springs.k
│
└───_HBM
        _copy_your_HBM_includes_here.txt

Loadcase specific outputs

Time-history data:

• Energies
• Total energy
• Internal energy
• Kinetic energy
• Hourglass energy
• Added mass (when using mass scaling)
• Percent increase of added mass
• Contact forces
• Contact force between HBM and hubs
• Hubs
• X-coordinate

License

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License

Copyright

Copyright 2024 OVTO

Acknowledgement

The setup has been developed by the Vehicle Safety Institute at Graz University of Technology to be HBM-neutral. This work was funded by the research project "QualiPro HBM4VT". We acknowledge the support of all sponsors:

• DYNAmore Gesellschaft für FEM Ingenieurdienstleistungen GmbH, an Ansys Company
• Global Human Body Models Consortium, LLC (GHBMC)
• Humanetics
• SAFER (represented by Autoliv Development AB and Volvo Car Corporation)
• Toyota Motor Europe NV/SA

References

Rupp, J., Miller, C., Reed, M., Madura, N., Klinich, K., Schneider, L. (2008). Characterization of Knee-Thigh-Hip Response in Frontal Impacts Using Biomechanical Testing and Computational Simulations. Stapp Car Crash Journal, 52, 421–474. https://doi.org/10.4271/2008-22-0017

The test data for the knee impactor tests are available from the NHTSA biomechanics database under following reference numbers: https://www.nhtsa.gov/research-data/research-testing-databases#/biomechanics/

Subject	Low Speed (1.2 m/s)	Medium Speed (3.5 m/s)	High Speed (3.5 m/s)
709	709AA	709AF	709AG
710	710AA	710AF	710AG
711	711AA	711AF	711AG
712	712AA	712AF	712AG
713	713AA	713AF	713AG