Abstract
The mechanical behavior of fibrous structures depends on the inter-fiber friction. In the scientific literature, many researchers have studied this kind of friction, however all of them focused on the inter-fiber friction in only two directions: longitudinal-to-longitudinal (l-l) and longitudinal-to-transversal (l-t). Hence, there are no studies, up to now, focusing on transversal-to-transversal (t-t) direction. For this reason, an experimental device was developed to evaluate the transversal inter-fiber friction. The obtained results would allow characterizing and modelling this type of friction.
Highlights
In some of composite manufacturing processes, such as Resin Transfer Molding (RTM), fibrous reinforcements are subjected to a preforming before the stage of resin injection
Current studies [1] show that the appearance of preforming defects is due to several reasons, where the most influential one is the friction occurring inside the fibrous structures during their preforming
We presently focus on the friction at the microscopic scale. This type of friction, called inter-fiber or fiber-to-fiber friction, has been reported by numerous studies [3] [4] [5] [6], but all of them focused on longitudinal-to-longitudinal or longitudinal-to-transversal friction
Summary
- Studies on Ultrasonic Vibration Bending of Thin Metal Plates Jiromaru Tsujino, Hajime Satoh and Kazuhiro Takiguchi.
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