This paper has two main objectives. The first one is to summarize and critique the currently available side impact data base upon which side stiffness models and their associated coefficients have and can be based. Published "recommended" crush coefficients generally assume that the CRASH constant stiffness model holds over the complete range of crush depths. The second objective of the paper is to provide guidelines and insights into the development of reasonable energy estimates by use of improved crush models and crush measurement procedures. To deal with the more realistic structural behaviour seen in practice at larger crush depths, the concept of a force saturation model is proposed as a more reasonable alternative to the CRASH model.
Samenvatting