A Study of NHTSA Oblique Impact MDB on the Vehicle Crash Behavior

Junsuk Bae; Ho Kim; Young Myoung So

doi:10.22680/kasa2024.16.3.047

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2024 Vol.16, Issue 3 Preview Page Next Page

A Study of NHTSA Oblique Impact MDB on the Vehicle Crash Behavior NHTSA 경사 충돌 MDB 특성 변화에 따른 충돌 거동 연구

30 September 2024. pp. 47-54

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Abstract

MDB (Moving Deformable Barrier) is widely used over the world for the tests like frontal offset impact, side impact as well as frontal oblique impact. As autonomous vehicles are expected to come into the market in near future, new test protocols are required to secure the safety of the new type vehicles. MDB can be a versatile option for the new tests. In order to better understand the MDB, NHTSA oblique impact is chosen for the case study. NHTSA oblique impact test is about to be published and will be one of the newest test protocol using MDB, which bears technical know-how’s built up from previous studies of MDB impacts. Compressive deformation behavior of the honeycomb of MDB is studied changing thickness of honeycomb structure. Delta-V is a good measure of impulse to the vehicle and is compared with varying weight of the MDB as well as its initial impact speed. Equivalence of delta-V with respect to momentum and kinetic energy is studied as well.

Keywords

Moving deformable barrier(변형 가능 대차)

Vehicle safety(차량 안전)

Finite element method(유한요소법)

Oblique impact(경사충돌)

NHTSA(미국도로교통안전국)

References

Dazhi Wang, Guang Dong, Jinhuan Zhang et al., 2006, "Car side structure crashworthiness in pole and moving deformable barrier side impacts," Tsinghua Science and Technology, Vol. 11, issue 6, pp. 715~730.

10.1016/S1007-0214(06)70256-5

Saunders, J., Craig, M., and Parent, D., 2012, "Moving Deformable Barrier Test Procedure for Evaluating Small Overlap/Oblique Crashes," SAE Int. J. Commer. Veh. 5(1): 172~195.

10.4271/2012-01-0577

NHTSA, 2018, "Structural countermeasure/research program: mass and cost increase due to oblique offset moving deformable barrier impact test."

Ryuuji Ootani, Taisuke Watanabe, and Tomosaburo Okabe, 2015, "Consideration of representativeness of real-world accidents and repeatability of new NHTSA oblique offset frontal impact test," ESV, Paper #15-0261.

D. J. Gabauer and H. C. Gabler, 2006, "Comparison of Delta-V and Occupant Impact Velocity Crash Severity Metrics Using Event Data Recorders," Annu. Proc. Assoc. Adv. Automot. Med. 50: 57~71.

Sung-tae Hong et al., 2009, "Dynamic crush behaviors of aluminum honeycomb specimens under compression dominant inclined loads," Int. J. Plast., Vol. 24, Issue 1.

10.1016/j.ijplas.2007.02.003

한국교통안전공단, 2024, "측면충돌 안전성 시험방법 및 평가방법."

NHTSA, 2018, "Vehicle Interior and Restraints Modeling Development of Full Vehicle Finite Element Model Including Vehicle Interior and Occupant Restraints Systems For Occupant Safety Analysis Using THOR Dummies," National Highway Traffic Safety Administration. Report No. DOT-HS-812-545.

Information

Publisher :Korean Auto-vehicle Safety Association
Publisher(Ko) :한국자동차안전학회
Journal Title :Journal of Auto-vehicle Safety Association
Journal Title(Ko) :자동차안전학회지
Volume : 16
No :3
Pages :47-54
Received Date : 2024-05-20
Revised Date : 2024-08-16
Accepted Date : 2024-08-20
DOI :https://doi.org/10.22680/kasa2024.16.3.047

Journal of Auto-vehicle Safety Association ISSN:2005-9396(Print) 자동차안전학회지

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