Shoulder impact (Compigne 2004)¶

Model validation information

• Performed by : Jobin John
• Reviewed by : Matej Kranjec

Added to VIVA+ Validation Catalog on 2022-06-28 by Jobin John

Version	Date	Performed by	LS-Dyna
0.3.2	2022-06-28	Jobin John	9.3.1
1.1.0	2024-05-22	Jobin John	12.2.1
2.0.0	2024-10-29	Matej Kranjec	12.2.1

© 2019-2024, OpenVT Organization (OVTO)

Available openly under Creative Commons Attribution 4.0 International License

Experiment by Compigne et al. 2004¶

This loadcase simulates the shoulder impacts reported by Compigne et al., 2004

Compigne, S., Caire, Y., Quesnel, T., & Verries, J. P. (2004). Non-injurious and injurious impact response of the human shoulder three-dimensional analysis of kinematics and determination of injury threshold (No. 2004-22-0005). SAE Technical Paper.

Experiment¶

Seven post-mortem human subjects (PMHS) were struck on the shoulders with a 23.4 kg rectangular impactor.

Information on subjects¶

Subject	Age	Sex	Weight (kg)	Height (cm)	Shoulder width (mm)	Flesh thickness L/R (mm)
1	77	F	67	161	335	20/24
2	88	M	33	163	355	10/12
3	79	F	52	159	355	12/10
4	82	F	50	155	345	15/15
5	91	M	50	165	370	13/12
6	94	F	50	148	355	11/13
7	93	F	66.5	152	400	20/30

Loading and Boundary Conditions¶

In this experiment, the subjects were impacted on the right shoulder at low speed (1.5 m/s) and at high speed (3 - 6 m/s) on the left shoulder. For the low speed impact, the impact direction was also varied in between $+15^o$ and $-15^o$.

Simulation¶

In the simulations presented below, the 50F and 50M VIVA+ seated models were impacted at

• low speed of 1.5 m/s
• high speed of 6 m/s.

The acromion-to-acromion deflection was compared to the raw (unscaled) responses reported in the publication.

Results¶

Simulation Energies¶

Impact force vs time¶

Deflection vs time¶

Force and Deflection¶

Low Speed Force vs Deflection¶

High Speed Force vs Deflection¶