Mathematical predictions of gas permeability for automotive air-bags
Mathematical predictions of gas permeability for automotive air-bags
- New search for: Partridge, J.F.
- New search for: Mukhopadhyay, S.K.
- New search for: Partridge, J.F.
- New search for: Mukhopadhyay, S.K.
The mathematical relationship combining an applied pressure drop and the resultant gas velocity through a woven fabric is important to the air-bag industry to predict the performance of new materials before they are woven. The main difficulty in formulating a mathematical solution is the complexity of the woven fabric structure. In available publications, fabric pores had normally been represented a a series of cylindrical pipes.This article considers the same approach and analyzes some of the equations to review their industrial applicability. Because none of the equations have been found adaptable in predicting the permeability behavior of air-bag fabrics, experimental data have been used to generate empirical equations. The data were generated using a dynamic air permeability tester that was used to project air at high pressure through a variety of air-bag fabrics. A static permeability tester was also used to generate results through the same fabrics at lower pressures. The final equations combine the fabric cover factor and the pressure differential to give the resultant gas velocity.
Document information
Mathematical predictions of gas permeability for automotive air-bags
Mathematische Vorhersagen der Gasdurchlässigkeit von Air Bag-Geweben
Journal of Applied Polymer Science ; 77 , 10 ; 2104-2112
2000
9 Seiten, 6 Bilder, 1 Tabelle, 15 Quellen
Article (Journal)
English
Similar titles
IDENTIFICATION OF AUTOMOTIVE AIR BAGS
SAE Technical Papers | 1989
High performance torsional silicon accelerometer for automotive air bags
| Tema Archive | 2002
Deployment of Electrically Activated Automotive Air Bags for Automobile Reclamation
SAE Technical Papers | 2010
DEPLOYMENT OF ELECTRICALLY ACTIVATED AUTOMOTIVE AIR BAGS FOR AUTOMOBILE RECLAMATION
SAE Technical Papers | 1992
Automotive air bags and passive restraint systems an exploding market
| Tema Archive | 1992