Abstract
In this study, two analyses of stress distribution and principal stress chart in an automobile hub on cornering force were done by photoelasticity to discuss optimum structure. Experiment used a model of the automobile hub made from epoxy resin, assumption parts of a bearing and brake plate. In the experiment, load to the automobile hub were increased by the assumption parts of the bearing and some weights. Stress distribution showed that stress concentration by the cornering force became remarkable at 3 points. One was fillet in boss root, the others were bolt hole and contact department with the brake plate. On the other hand, principal stress chart showed that 3 singular points appeared near the bolt hole and the fillet in the automobile hub. At least, singular point of near the fillet was divergent type from an accident example which had occurred in 2002. At results, designing optimum automobile hub needs to discuss structure of the 3 points.
