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시험 및 해석에 의한 차체 BIW 충돌 해석 정도 향상
임진학(Lim Jin Hak),임장묵(Lim Jang Mook),배한일(Bae Han il) 한국자동차공학회 2004 한국자동차공학회 Symposium Vol.- No.-
By improving simulation accuracy, the cost and time for the test can be tremendously reduced. In this paper, we performed full overlap frontal impact tests of Body-in-White(BIW) and simulations at the speed of 5, 15 and 30mph with the help of basic data from test results to enhance the simulation accuracy. For the computer simulation, four point integration shell was applied to the model and stress-strain curves of each strain rate were considered. Root mean square error was introduced to evaluate simulation results quantitatively. The simulation results showed excellent agreement with experimental ones.<br/> <br/>