Within the CASPER Project, the FE Models of child bodies will be developed. The ages are 1, 3 and 6 years old. The 3 y.o. will be a new development. The model geometry is based on CT scans provided by LMU (Ludwig Maximilians University). The child was chosen from a database of deceased children, scanned at the LMU. The criterion for this specific model was a geometrical affinity to a 3 y.o. child of 50 percentile size.
3YO FE Child Model
In the following table you can find the data of the selected base for the 3YO human model in comparison to the statistical average and the corresponding Q3 dummy.
| Child model | Statistical average* | Q3 Dummy** | |
|---|---|---|---|
| Age |
3.26 y.o.
|
3 y.o.
|
3
|
| Sex |
female
|
-
|
-
|
| Stature height |
94 cm
|
92 cm
|
98,5 cm
|
| Weight |
18 kg
|
12,8 kg
|
14,6 kg
|
| Cause of Death |
pulmonary disease***
|
-
|
-
|
| images |
3279
|
-
|
-
|
| Slice Thickness |
1,00 mm
|
-
|
-
|
*) statistical data is based on the UMTRI database (1977)
**) The Q-Dummy Family is based on the CANDAT database (newer data from the 1990ies, not available for the public)
***) Pulmonary disease – disease that causes narrowing of the airways in the lungs. This leads to a limitation of the flow of air to and from the lungs causing shortness of breath. This disease can cause abnormal growth of the lungs and the ribcage (reduced lung volume, connected with the abnormity of the ribcage and the neighbour organs size).
TU Berlin takes over the part of modelling the thorax / abdomen for the 3 y.o. child.
The main focus in modelling of the torso lies on the following inner organs:
3YO FE Child Model organs
The other inner organs / the digestive system will be modelled with a simplified model, as injuries in this area are not that often like with the mentioned above.
For the validation procedure of the final model only few studies are available. Most of them are from the 80ies and were performed with PMHS’s (post mortem human subject). For the mechanical properties of certain inner organs with no available test data, the numerical material characteristics will be scaled down from the adult data. Another option is to fall back on data gained from animal tests (as long as comparable). Possible candidates for this purpose are e.g. monkeys or young swine’s.
