2021-2022

Investigation on Mitigative Impact of Front Seat Back into Rear Passenger Space and Effects on Front Seat Occupant in Rear Impacts - Year 2

Principal Investigator: Yun Seok Kang, PhD

This project builds on prior CChIPS research to investigate front row seatback stiffness, deformation, and rotation to adequately absorb crash energy for front row occupants while also preventing excessive rearward rotation into the rear row space.

2020-2021

Repeatability of the CRABI 12MO, CRABI 18MO, and Hybrid III 3YO ATD Neck Response During Forward and Rear Facing Frontal Impacts

Principal Investigator: Yun Seok Kang, PhD

This study aims to provide head/neck response data of the unmodified and modified CRABI and HII 3YO ATDs in forward- and rear-facing frontal impact scenarios using a mini-sled system.

2018-2019

Sensitivity Analysis on Factors that Influence Head Responses of Hybrid III 6-Year-Old ATD

Principal Investigator: Yun Seok Kang, PhD

This study aims to provide information that will allow child restraint system and vehicle engineers to understand the influence of neck cable tightness and repeated tests on responses of the Hybrid III 6-year-old anthropomorphic test device (ATD) head and neck in frontal impact scenarios, utilizing a controlled mini-sled system.

2017-2018

Influence of CRS Fit on Far Side Impacts

Principal Investigator: Yun Seok Kang, PhD

Side impacts are the second most frequent type of collision and can cause serious injuries to pediatric occupants. While higher fatality rates have been reported for near-side impacts, serious non-fatal injuries have been reported for far-side impacts as well, where little or no vehicle intrusion was reported. The fit of the CRS, especially problems which produce gaps between the CRS and vehicle seat surfaces, could affect occupant and CRS responses in…

2016-2017

Lear First Year Project: The roles of Vehicle Seat Cushion Stiffness and Length in CRS Performance

Principal Investigator: Yun Seok Kang, PhD

Due to the wide variety of rear seat occupant sizes, optimization of seat parameters is complex. Recent work supports the adoption of shorter seat cushion lengths to better accommodate the adolescent and small adult population. However, shorter seat cushion lengths may be detrimental to the youngest rear row occupants who ride in CRS with large base footprints. This study aims to investigate whether seat cushion length plays a role in CRS performance and…

2015-2016

Dynamic Top Tether Loads in Various Anchor Locations in Side Impacts

Principal Investigator: Yun Seok Kang, PhD

Lower Anchors and Tethers for Children (LATCH) standardize the method to attach CRS to vehicles without using a seat belt. When properly used, the LATCH system usually protects the child from injuries in MVCs. It has been reported that the top tether has excellent advantages for injury prevention when properly used as compared with the same condition without the top tether attached. However, effectiveness of different top tether locations on dynamics…

2014-2015

Dynamic Strength of Top Tether Anchorages in Various Anchor Locations(Multiple Year Project)

Principal Investigator: Yun Seok Kang, PhD

Principal Investigator: Yun Seok Kang, PhD,Ohio State University

Effectiveness of Top Tether on Angular Kinematics of CRS and ATD in Side Impacts

Principal Investigator: Yun Seok Kang, PhD

Efforts have been made by child restraint system (CRS) manufacturers to improve the effectiveness of CRS in side impacts, and various methods of attaching the CRS to the vehicle structure have been developed and validated. The Lower Anchors and Tethers for Children (LATCH) system standardizes the method to attach CRS to vehicles without using a seat belt in the US, yet its effectiveness on the angular kinematics of the CRS and occupant has not been well…

2013-2014

Dynamic Strength of Top Tether Anchorages in Various Anchor Locations(Multiple Year Project)

Principal Investigator: Yun Seok Kang, PhD

Principal Investigator: Yun Seok Kang, PhD,Ohio State University

Comparison of Q3s ATD Biomechanical Responses to Pediatric Volunteers

Principal Investigator: Yun Seok Kang, PhD

The long-term goal of this study is to assess the biofidelity of the Q3s, a dummy developed specifically for lateral side impact testing in children, using existing human volunteer data such that safety tools for children can be designed and evaluated by using the biofidelic child ATD. This goal includes evaluation of the difference between the Q3s and the Hybrid III 3 year old ATD by comparison of kinematics and kinetics of the Q3s with those of the…