Improvement in crashworthiness of a vehicle for side impact occupant protection using IMPAXX and polyurethane high energy-absorbing foam materials

Loading...
Thumbnail Image
Authors
Muthyala, Saketh Reddy
Advisors
Lankarani, Hamid M.
Issue Date
2017-12
Type
Thesis
Keywords
Research Projects
Organizational Units
Journal Issue
Citation
Abstract

Side impact car crashes account for roughly 30% of all fatalities in road accidents including passenger cars and light trucks, and they tend to have a disastrous effect on the human body than all other types of car accidents due to very less crumple zone. In consideration of all this, even in the lower end and higher end vehicle segments, active safety systems are incorporated more often for side impact protection. However, there is still a large number of vehicles built without side airbags, in specific regions such as North America and emerging markets. Therefore, it is still necessary to engineer passive safety measurement by utilizing safety countermeasures, such as foams solutions to protect the occupant during side impact collisions. The present study is focused on investigation of the advantage of applying high efficient energy absorption foams for side impact protection of car occupants. First, the characteristics of high energy absorbing foam models are examined by finite element analysis and simulations of the Drop Tower Tests and the Free Motion Headform tests. After ensuring material models behavior, the design of the current B-pillar is altered by adding foam into its cavity. Subsequently, side impact test simulations of a typical passenger car with a moving deformable barrier, as per NHTSA and IIHS safety regulations, with the current and modified B-pillar are conducted. In the end, various injury criteria are evaluated by positioning a ES-2re finite element dummy model with, a three-point lap and shoulder seat belt into the driver seat. The study demonstrates that the potential for the use of high-energy absorbing foam for side impact protection.

Table of Contents
Description
Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Mechanical Engineering
Publisher
Wichita State University
Journal
Book Title
Series
PubMed ID
DOI
ISSN
EISSN