Influences of Surface Roughness of Steel Substrate on Bond Strength of Fiber Woven Composite

Abstract

The influences of metal surface roughness on the shear strength and peel strength of fiber woven composites (FWC) were studied. Test results show that the metal surface roughness have an important impact on the shear strength and peel strength of FWC. Higher or lower surface roughness can reduce the adhesive strength of FWC. When the best roughness is 0.8, the maximum peel strength and shear strength of FWC are obtained, which ensure the operation reliability and enough life of the spherical plain bearing (SPB) with self-lubrication fabric liner.