| Title |
Transforming Test Data of an Impact to a Crash Cushion into the Data of Different Impact Condition |
| Authors |
장대영(Jang, Dae Young) ; 고만기(Ko, Man Gi) ; 주재웅(Joo, Jae Woong) ; 김동성(Kim, Dong Sung) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.4A.197 |
| Keywords |
충돌해석;충격흡수시설;도로안전시설;충돌시험 crash analysis;crash cushion;roadside safety features;crash test |
| Abstract |
It is found the first case of broad interpretation of the crash analysis in MASH (Manual for Assessing Safety Hardware, AASHTO, 2009) which is the guideline of roadside safety features in United States. They introduced the procedure of calculating 1,500 kg sedan safety index from the 2,270 kg pick-up truck crash test for crash cushion. First, following MASH's method, calculate 0.9 ton vehicle crash data and safety index using 1.3 ton vehicle crash test data and compare with actual 0.9 ton vehicle crash test data. results show that actual test data and the data calculated by MASH's method have great difference. Second, analyse the cause and develop new method. Proposed method can estimate not only the lighter vehicle (0.9 ton) crash data from the heavier vehicle (1.3 ton) crash test but also heavier vehicle (1.3 ton) data from lighter vehicle (0.9 ton) test. This method is superior to MASH's method and has stronger theoretical foundation. This paper proves the efficiency and the accuracy of new broad interpretation method using crash test data and investigates the principle. |