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INTERNATIONAL JOURNAL OF SCIENTIFIC DEVELOPMENT AND RESEARCH International Peer Reviewed & Refereed Journals, Open Access Journal ISSN Approved Journal No: 2455-2631 | Impact factor: 8.15 | ESTD Year: 2016 open access , Peer-reviewed, and Refereed Journals, Impact factor 8.15 |
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| Paper Title: | Evaluation of Occupant Head Injury During Automotive Interior Head Impact As Per FMVSS201U Regulations using Fea Approach |
| Authors Name: | Amruth C H , Sudheer Kumar.B N , Harsha G O |
| Unique Id: | IJSDR1807048 |
| Published In: | Volume 3 Issue 7, July-2018 |
| Abstract: | A significant fraction of fatalities involving passengers in Automobile accidents is due to severe Head Injury. These injuries occur when an occupants head is struck against the interior of vehicle during crashes. Head impact safety which in turn is the occupant safety is a significant consideration particularly in the design of Passenger Vehicles. Sports Utility Vehicles (SUVs) have a greater tendency to rollover when compared to other Passenger Vehicles as they have higher center of gravity. During the rollover of SUV the head comes in contact with the parts such as the B-Pillar so in order to evaluate the occupant safety during rollover National Highway Traffic Safety Administration has set Federal Motor Vehicle Safety Standard 201Upper (FMVSS201U). The regulation FMVSS201U emphasizes on the design and testing methodology of the occupant injury levels during interior impact scenario. As per the requirements the Finite element model of the SUV is generated. The Free motion Head Form is positioned at the pre-identified target locations on the B-Pillar as per the standard requirements. The pre-identified target points on the B-Pillar are BP1, BP2 and BP3. The Free Motion Head Form is made to hit the target location at 15 mph initial velocity and the Head Injury Criteria HIC (d) which is a non-parametric number indicating the head injury levels is identified. HIC (d) number higher than 1000 is critical for the survival of the occupant and calls for the re-design of the B-Pillar. The FEA tool Hypermesh is used for the pre-processing ie; model preparation and load case setup. LS-DYNA 3D, a non-linear dynamic solver is used for solving. Hyper view is used as post-processor to derive the HIC (d) values from the analysis. The evaluation of HIC (d) for various grades of steel such as SAE 340S, SAE 280A, SAE 250A and SAE 180A for B-Pillar has been carried out. SAE 180A grade of steel is preferred for B-Pillar as it provides HIC (d) value lower than other grades of steel and also HIC (d) value is less than 700 which is the requirement of Original Equipment Manufacturers (OEM’s). |
| Keywords: | FMVSS201U, SUV, pattern, LS-DYNA, B-Pillar, Hypermesh |
| Cite Article: | "Evaluation of Occupant Head Injury During Automotive Interior Head Impact As Per FMVSS201U Regulations using Fea Approach", International Journal of Science & Engineering Development Research (www.ijsdr.org), ISSN:2455-2631, Vol.3, Issue 7, page no.279 - 284, July-2018, Available :http://www.ijsdr.org/papers/IJSDR1807048.pdf |
| Downloads: | 000337072 |
| Publication Details: | Published Paper ID: IJSDR1807048 Registration ID:180536 Published In: Volume 3 Issue 7, July-2018 DOI (Digital Object Identifier): Page No: 279 - 284 Publisher: IJSDR | www.ijsdr.org ISSN Number: 2455-2631 |
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