This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Minimizing Read-Through When Creating a Mechanical Score in a Polymer Skin
Technical Paper
2007-01-1220
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
When weakening a skin/foam bilaminate by mechanically scoring the polymer skin on its back surface, where it is bonded to the foam, the weakness of the bilaminate is determined by the depth of the score groove. The deeper the groove, the weaker the bilaminate. But also, the deeper the groove, the greater the tendency for read-through. Read-through is seeing on the front surface the location of this groove that was created on the back surface. Scored skins, after mounting flat on a glass plate, were viewed with an optical interferometer. It was found that the topographical feature that constituted read-through was a valley. A Silly Putty model was used to better understand the strains induced by mechanical scoring and this understanding was used to identify factors affecting read-through. Blade thickness and the ultimate elongation of the skin material were identified as factors. This work is applicable to certain types of passenger-side seamless airbag systems, for example.
Recommended Content
Authors
Topic
Citation
Cox, K. and Robertson, R., "Minimizing Read-Through When Creating a Mechanical Score in a Polymer Skin," SAE Technical Paper 2007-01-1220, 2007, https://doi.org/10.4271/2007-01-1220.Also In
Human Factors in Seating Comfort and Driving and Automotive Telematics and Advances in Instrument Panels and Interiors
Number: SP-2104; Published: 2007-04-16
Number: SP-2104; Published: 2007-04-16
References
- Sun E.M. Pink J.D. Mishra S. Cardenas A.H. 2003
- Iannazzi P. Daris F. “Seamless Passenger Side Air Bag Doors” Society of Automotive Engineers, Article 960403 27 31 1996
- Whitehouse D. “Surfaces and their Measurements” Optical methods Hermes Penton Ltd London 2002 185 200
- Titow W.V. “PVC Technology, Fouth Edition” Poperties of Special Interest in PVC Materials and Products Elsevier Applied Science Publishers LTD New York 1984 443 452
- Nielsen L.E. Landel R.F. “Mechanical Properties of Polymers and Composites, Second Edition, Revised and Expanded” Stress-Strain Behavior and Strength Marcel Dekker, Inc. New York 1994 253 256