03 Dummies

Question 1

Important properties for dummies (7)

Answer 1

• Anthropometry
• Bio-fidelity
• Repeatability
• Reproducibility
• Sensitivity
• Instrumentation
• Durability

Question 2

Anthropometry

Answer 2

shape, size and mass representative of human body

Question 3

Bio-fidelity

Answer 3

human like stiffness of surface and joints

Question 4

Repeatability

Answer 4

same response every time

Question 5

Sensitivity

Answer 5

sensitive to input that effects the injury risk

Question 6

Instrumentation

Answer 6

measure output signals that are known to indicate injury risks

Question 7

Durability

Answer 7

withstand crash without damage

Question 8

Dummies

Answer 8

Hybrid III, Thor…

Question 9

Hybrid III vs THOR

Answer 9

H III: deformation properties are not representative of human, has a ridged spine
THOR: is better in every aspect

Question 10

HIC linear loads

Answer 10

Head injury Assessment
corresponds better with fractures than max. acc.

Question 11

Thorax Injury Assessment

Answer 11

• chest compression (Cmax) ~chest loading to risk of injury
• presented in deformation (mm) or relative compression (%)

Question 12

Thorax Injury Assessment - Injury types + Graph

Answer 12

x: velocity of deformation (m/s)
Y: compression (%)
Graph: starts high, decrease, final flattens
- Crushing injury (on top plateau)
- viscous injury (on slope)
- blast injury (on bottom plateau)

Question 13

Injury mechanism

Answer 13

process that disrupts the tissue

Question 14

Injury criteria

Answer 14

Relation between the severity of an injury and the value of a physical variable describing the impact of violence (something you can measure in a dummy that correlates to injury risk)

Question 15

Tolerance level

Answer 15

Magnitude of external loading that causes specific type of injury severity in specific tissue (e.g. external axial force on a long bone)

Question 16

Injury threshold

Answer 16

Level of internal mechanical response above which a specified injury will occur for a given individual (e.g. strain in brain tissue)

Question 17

Injury assessment values

Answer 17

Response level below which a specified significant injury is unlikely to occur for a given individual (e.g. a maximum limit of load in a dummy to pass the test)