Rear Sled (Yoganadan 2000)¶
PMHS Rear Impact with rigid seat by Yoganandan et al. (2000)
| Version | Date | Performed by | LS-Dyna |
|---|---|---|---|
| 0.3.2 | 2022-12-27 | Jobin John | 9.3.1 |
| 1.1.1 | 2024-05-21 | Jobin John | 12.2.1 |
Added to VIVA+ Validation Catalog on 2022-12-27 by Jobin John
© 2022-2024, OpenVT Organization (OVTO)
Available openly under under Creative Commons Attribution 4.0 International License 
Experiment¶
Information on the subjects/specimens¶
- Number of subjects/specimens: 5
- Sex: 4 female, 1 male
- Mass (kg): [female: 72.6, 55.4, 40.4, 36.3], [male: 107.5]
- Height (m): [female: 1.64, 1.56, 1.65, 1.52], [male: 1.85]
- Age: not available
Loading and Boundary Conditions¶
Impact¶
- 2 female at 4.3 m/s
- 2 female, 1 male at 6.8 m/s
| PMHS | Velocity | Sex |
|---|---|---|
| 101 | 6.8 m/s (25 km/h) | F |
| 102 | 4.3 m/s (16 km/h) | F |
| 103 | 4.3 m/s (16 km/h) | F |
| 104 | 6.8 m/s (25 km/h) | M |
| 105 | 6.8 m/s (25 km/h) | F |
Positioning¶
- Head Frankfort plane horizontal
- Upper extremities crossed in front of the thorax
- Knee-foot-ankle stretched out
- Lap belt was tightened without slack
Seat¶
- Seatback for male : 448 mm x 700 mm
- Seatback for female : 448 mm x 583 mm
Responses recorded¶
- Triaxial linear accelerometers on skull, T1 spinous process, sacrum and sled
- Radiographs of positioned specimen prior to Impact
- High speed photography (1000 f/sec): right lateral, overhead top, and close-up lateral on head-neck and neck-torso-pelvis
OC x-displacment with respect to T1¶
A local coordinate was defined at T1 based on the description from the experiments
The landmarks used for the definitions and the directions of the axes are:
- x-axis: Defined between the superior anterior edge of vertebral body and posterior edge of spinous process
- In the experiments, the axis direction is opposite. Hence use the negative to compare.
- y-axis: perpendicular to x-axis, in the mid-sagittal plane (corresponds to negative z-axis in the experiments)
- z-axis: perpendicular to x-y, left to right (corresponds to negative y-axis in the experiments)
Head and T1 Kinematics¶
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