Dynamic testing of airbag fabric permeability and extensibility for depowered airbags

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Title: Dynamic testing of airbag fabric permeability and extensibility for depowered airbags
Author: Narayanan, Anand
Abstract: Woven textile fabrics are used in airbags to absorb the kinetic energy that is dissipated during an automotive crash . Energy dissipation is achieved through viscous airflow through the fabric pores and by biaxial stretching of the fabric . The synergistic effects of temperature , pressure , fabric weave , fabric finish and fabric denier is difficult to determine a priori . This study was proposed to gain better understanding of the performance of the airbag fabric and its properties under the hostile conditions of its deployment . Since airbag fabrics are being manufactured with different properties , it is important that these fabrics are evaluated before they are used for passenger restraint . Before this research effort , these fabrics were not tested at extreme conditions of temperature and pressure . The novel blister -inflation technique was used to evaluate the properties of these fabrics under biaxially stretching conditions . It was used to investigate the permeability -temperature -pressure drop relationship and biaxial stress -strain behavior of the fabrics .
URI: http : / /hdl .handle .net /2346 /10246
Date: 1999-08

Citation

Narayanan, Anand Dynamic testing of airbag fabric permeability and extensibility for depowered airbags. Master's thesis, Texas Tech University. Available electronically from http : / /hdl .handle .net /2346 /10246 .

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