A MULTI-SCALE MODEL FOR SIMULATION ON CONTACT BEHAVIOR OF NANO-C/C COMPOSITES UNDER ELECTRIC CURRENT
Nano-C/C composites reinforced by Bacteria Cellulose fibers have good tribological properties and electrical conductivity.An effective model is considered to simulate contact of the nano-C/C composite.Contact behavior between the nano-C/C composite and a sphere ball is evaluated under electric current which generates Joule heating.A multi-scale model, which consists of macroscopic homogeneous medium, microscopic inhomogeneous medium and a sphere, is developed to conduct efficient numerical simulation on contact.The sphere ball is located on the inhomogeneous medium with microscopic structure and the homogeneous medium is placed surrounding the inhomogeneous medium.Effective electro-thermo-mechanical properties of the composite are evaluated as a macroscopic homogeneous medium by a homogenization theory.Simulation of the contact behavior of the nano-C/C composite and a sphere is made by finite element method including effect of Joule heating.
Nano-Composite C/C Composite Homogenization Theory Contact Joule Heating Sliding
Yotsugi SHIBUYA Yoshihito OZAWA
Department of Mechanical Engineering, Akita University, Akita 010-8502, Japan Department of Human Support System, Fukushima University, Fukushima 960-1296, Japan
国际会议
12th International Congress onThermal Stresses (第十二届国际热应力大会)
杭州
英文
349-352
2019-06-01（万方平台首次上网日期，不代表论文的发表时间）