Technical Paper
Assessment of Abdominal Loading to Pregnant Model Setup during Vehicle Frontal Impact for Different Lap Belt Positions
2022-03-29
2022-01-0847
The paper addresses the safety of a pregnant passenger from an injury risk point of view regarding to the position of the seatbelt’s lap part. The finite element based-pregnant abdomen model is incorporated into the simplified rigid body-based female body model. The study was done in two steps. Firstly, a female model was validated in the frontal sled test to ensure its biofidelity for this particular purpose. Secondly, a fully deformable abdomen was added to create a pregnant female model. Such model was positioned in a deformable frontal seat and restrained by a safety system such as a three-point seat belt and airbag to simulate the frontal sled test scenario. A deceleration pulse corresponding to a frontal impact related to two impact velocities (30 km/h and 50 km/h) is applied and the restraint system performance is assessed with the focus on the fetus and female injury risk.