[Experimental research on mechanical behavior of human placenta].
OBJECTIVE
Determination of mechanical properties of human placenta.


METHODS
Realisation of an experimental study using 80 human placentas and modelisation of this study using a finite element numerical model. Using the inverse analysis method, research of the parameters of placenta's behavior.


RESULTS
Hyper-Visco-Elastic law written by Ogden, optimized for placenta with parameters: mu(1)=0.0001881Mpa, mu(2)=-0.000240Mpa, mu(3)=mu(4)=0Mpa and alpha(1)=2, alpha(2)=-8, alpha(3)=alpha(4)=0 in static condition.


CONCLUSIONS
The parameters enable an approach of the mechanical behavior of the placenta. They could be used in numerical modelisation.
Dorez
M
M
reproduction et de médecine foetale, hôpital Archet, Nice, France.
Delotte
J
J
Behr
M
M
Thollon
L
L
Tillier
Y
Y
Azuar
P
P
Bongain
A
A
Brunet
C
C
D000328:Adult; D001696:Biomechanical Phenomena; D004548:Elasticity; D005260:Female; D005865:Gestational Age; D006801:Humans; D010920:Placenta / Q000502:physiology*; D011247:Pregnancy; D014783:Viscosity