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Yoganandan 1997

These are simulation setups designed to replicate the impactor tests carried out by Yoganandan et al. (1997). The full reference is provided at the end of this document.

PMHS reference data overview

6 male specimen (average weight: 72 kg, average height: 172 cm, average age: 74.7 yrs)

Subject Number Sex Weight (kg) Height (cm) Age (yrs)
PMHS 1 M 82 170 72
PMHS 2 M 63 175 81
PMHS 3 M 68 168 84
PMHS 4 M 56 170 86
PMHS 5 M 61 174 62
PMHS 6 M 91 169 70
PMHS 7 M 83 178 68
average 72 172 74.7

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) in an appropriate time frequency!

A detailed guide with illustrations is provided in Documentation.pdf.

Please report all new issues you encounter.

Directory structure

yoganandan-1997
│   00_Master_Hub.k
│   Documentation_Hub.pdf
│   LICENSE
│   README.md
│   Version vX.X.X.md
│   Yoganandan_1997_assessment.ipynb
│
├───data
│   ├───examples
│   │
│   ├───experiment
│   │
│   ├───metadata
│   │   │   00_THUMS_v4.1_50M_IDs.def
│   │   │   00_THUMS_v4.1_50M_standing_IDs.def
│   │   │   00_VIVA+_50F_IDs.def
│   │   │   00_Yoganandan_env_ID.def
│   │   │   00_Yoganandan_hub_ID.def
│   │   │   01_units_ms_mm_kg.def
│   │   │   01_units_s_mm_ton.def
│   │   │   02_quality_criteria.def
│   │   │   04_hub.def
│   │   │   05_HBM_deflection.def
│   │   │   06a_HBM_ribs_visualisation.def
│   │   │   06_HBM_ribs_criteria.def
│   │   │   07a_HBM_ribs_NFR_risk_Larsson_2021.def
│   │   │   07b_HBM_ribs_NFR_risk_Larsson_2021_deflection_limits.def
│   │   │   07c_HBM_THUMS_50M_ribs_NFR_risk_Forman2022_3plus.def
│   │   │   07d_HBM_THUMS_50M_ribs_NFR_risk_Forman2022_3plus_deflection_limits.def
│   │   │   ls_user_function.py
│   │
│   └───processed
│       ├───figures
│       └───sim_results
│
├───sim_results
│       _copy_your_binouts_here.txt
│
├───_env
│       00_Database_Control.k
│       02_Hub.k
│       03_Boundary_Condition.k
│       05_Calculations.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 hub
  • Hub
  • Displacement (x in local coordinate hub system)
  • HBM
  • X, Y, and Z displacements of three nodes in the axis of hub loading (one at the skin, one at the ribs and one at the vertebra)
  • Relevant strain data for each rib over time

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 [2024] OVTO

Acknowledgement

The setups available here were created by the Vehicle Safety Institute at Graz University of Technology to be HBM-neutral. This work was funded by Euro NCAP.

The Jupyter notebook is loosely based on the notebook for the Viano 1998 loadcase from the VIVA+ validation catalogue, which was prepared by Corina Klug.

References

Yoganandan et al. (1997), “Impact biomechanics of the human thorax-abdomen complex”, International Journal of Crashworthiness, 2:2, 219 — 228. https://doi.org/10.1533/cras.1997.0045