Optimisation of vehicle side interior panels for occupant safety in side impact

Abstract

In a car side crash, the interior panels of the door and B-pillar could have a direct contact with the occupant of a struck car, which is a risk for occupant chest injuries. Therefore, the objective of the study is to enhance car safety performance for occupant chest protection by optimising the interior panel's properties and design parameters. A production passenger car finite-element model was developed and used to analyse the interior panels design for occupant protection. Prescribed structural motion technology was employed to reduce the computation time. The elastic modulus and thickness of the interior panels of the door and B-pillar are considered as design parameters. An optimisation of the interior panels was carried out by using the response surface methodology with quadratic functions. The efficiency of the optimisation was identified by reducing the risk of thorax injury by 25%.

Multi-objective crashworthiness optimization of vehicle body with negative Poisson’s ratio structure based on factorial analysis

“…Ghadianlou and Abdullah 11 studied the effects of material and geometry of side door beam on vehicle side crashworthiness, and the results showed that the permanent deformation damage and the peak deflection of the modified side door beam were effectively reduced. Zhang et al 12 optimized the elastic modulus and thickness of the interior panel of the door by the response surface method, and the optimization results indicated that the risk of thorax injury was reduced by 25%. Dong et al 13 analyzed the relationship between side intrusion and side structure by finite element simulation.…”

Optimization of a B-pillar with tailored properties under impact loading

“…B-pillars are essential in protecting occupants from such accidents (Figure 1). Although there are many studies on the collision performance of B-pillars in the literature [3][4][5][6][7][8], studies on the impact performance of hot-formed B-pillars are limited. The collision performance of fully martensitic B-pillar and B-pillar with tailored properties was compared numerically and experimentally.…”