Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 07, 2017 - October 09, 2017
Natural fiber composites receive wide attention as a sustainable material. The composite is toughened by fibers. Nano-C/C composites using Bacteria Cellulose have been developed, and present good tribological properties. In this study, we consider a natural fiber reinforced composite with random orientation of fiber and make a multi-scale model of the composite in order to clarify the characteristic of scratching on composite materials. The fiber structure filled with polymer matrix forms a natural fiber reinforced composite. To investigate tribological properties of the composite, we simulate a scratch test of the composite. The model consists of macroscopically homogeneous medium, microscopically inhomogeneous medium and a sphere. As we evaluate effective properties of the composite as a macroscopic homogeneous medium, a homogenization theory is applied. We demonstrate micro scratching on composite materials to clarify relation between load variation in scratching test and micro structure of composites.
