Ermittlung des Festigkeits‐ und Schädigungsverhaltens von Airbaggewebe bei verschiedenen Belastungszuständen und Dehnraten

Abstract

This paper presents experimental investi-gations of the material behaviour of a typical airbag fabric (Polyamid 6.6) at different loading types and strain rates. Fundamental results are a linear decrease of failure stress and a linear increase of failure strain with increasing temperature. Another important material parameter of airbag fabric, the burst pressure where the fabric bursts, was measured as 4-5 bar. The determined material data are important for the fabrication of airbags

Mechanical behavior of airbag fabrics under quasi-static loading: an experimental evaluation of macro- and meso-scopic properties

“…Different lever lengths can introduce different ratios of biaxiality; however, this study only used a 1:1 loading ratio. Like the preceding study, 6 there is no reference to the fabric geometry or the size of the sample population. It is also unclear how stresses and strains were normalized, but it is assumed the same procedures of the preceding paper were used.…”

“…Rohr et al 6 performed a series of experiments to determine the strength and failure behavior of fabric under different loading rates and exposed temperatures. A series of uniaxial tests on nylon 6,6 airbag fabric in the warp and fill directions was performed at loading rates of 0.08 and 500 mm/s using an Instron Type 8033 mechanical tester at temperatures between -35 C and 85 C. In addition, the fabric was tested at a loading rate of 9000 mm/s using a drop weight tower at temperatures of -35 C and 20 C. The fabric properties, such as yarn linear density, areal density and yarns per inch in both the warp and fill directions, were not reported in the study.…”