511 An Insight of quasi-static simulation of vehicle upper structure with windshield
Details
In the present study, the typical crush strength in quasi-static loading condition of the present automobile roof and B-pillar structure was estimated with the provision of FMVSS216 by a detailed finite element model which include minute details of roof-rail, spot welds, etc. FE simulations revealed that accurate glass strength estimation is necessary to accurately predict the inflection point, i.e., the start of the flat horizontal part of the load- displacement curve as seen in experiment. Like perfect pseudo-static test, elimination or compensation of the kinetic energy during large deformation region after the above mentioned inflection point, by incorporating equivalent increase in static energy is one of the simplest way to keep an energy conversion balance of external work to internal absorbed energy.
