Experimental determination of bearing strength in fiber reinforced laminated composite bolted joints under preload

Sayman O., Siyahkoc R., Sen F., Ozcan R.

JOURNAL OF REINFORCED PLASTICS AND COMPOSITES, vol.26, no.10, pp.1051-1063, 2007 (SCI-Expanded) identifier identifier


In this study, a failure analysis was carried out to determine bearing strengths of mechanically fastened joints with single bolt in glass-epoxy laminated composite plates. Two different geometrical parameters that were the edge distance-to-hole diameter ratio (E/D) and plate width-to-hole diameter ratio (W/D) were investigated. For that reason, E/D ratio was selected from 1 to 5, whereas W/D ratio was chosen from 2 to 5. Tensile tests were subjected to composite bolted joints for four different ply orientations such as angle-ply [0/30](s), [0/45](s), [0/60](s), and cross-ply [0/90](s). The major focus of this study was to observe the failure mechanisms of bolted joints under various preload moments as 0, 2.5, and 5 Nm. The experimental results showed that the magnitudes of bearing strengths in bolted joints were strictly influenced from increasing value of applied preload moments, changing of W/D and E/D ratios, and also ply orientations of laminated composite plates.