Abstract

A method of weight evaluation of the load-bearing structural elements of cars is presented and the weight ratio of the analysis model is investigated. Replacing the materials of floor elements of the car into the high-strength steel, a considerable weight-reduction of the model has been obtained. The 1500cc model is selected for the present study and the stick model analysis is employed for the structural analysis. The torsional stiffness of the weight-reduced model is also evaluated and it is shown it has a reasonable rigidity. The ratio of the weight of the load-bearing structural elements to the unladen vehicle weight of cars is about 0.12for the 1500cc model and the weight-reduction of this study can be obtained around 17% of the weight of the load-bearing structural elements.

Keywords

• load-bearing structural element;
• high-strength steel;
• stick model;
• strength estimation;
• unladen vehicle weight;
• weight-reduction;
• light weighr design;
• method of weight evaluation

• 순수강도부재;
• 고장력강;
• 스틱모델;
• 강도평가;
• 공차중량;
• 중량감소;
• 경량화설계;
• 중량계산법;