Abstract
Based on the basic principle of vehicle crash analysis using the finite element method, a car finite element model was built by using Hypermesh software. To simulate the front collision test of the car, the LS-DYNA software is adopted to calculate the deformation of the car and the acceleration time history curves during the crashing process; the anti-impact capability of the car is evaluated from this simulation. The results demonstrate that the improvement of local structure can promote the crashworthiness of the car, but the further improvement needs a major change of the car structure.
Highlights
The statistics of national road traffic situation have confirmed 1,840,998 cases of road traffic accident in China in the first half of 2011
For over 30 years, many countries have carried out the NCAP (New Car Assessment Program) in the world [2]
The vast majority of material data are obtained through experiments in the vehicle finite element model [5]
Summary
The statistics of national road traffic situation have confirmed 1,840,998 cases of road traffic accident in China in the first half of 2011. The road accidents involved 91,811 casualties; 25,864 people were dead; 106,370 people were injured and direct property loss was 440 million Yuan [1]. The high mortality rate of traffic accidents lets people increasingly value the car passive safety. For over 30 years, many countries have carried out the NCAP (New Car Assessment Program) in the world [2]. China Automotive Technology Center formally established the C-NCAP (China New Car Assessment Program) in conjunction with standard, the technical level of China’s automotive and economic development in 2006. The car frontal crash simulation model is calculated according to the latest C-. The car structure was improved [3]
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