Today, industries such as aircrafts, automobiles, sporting goods, electronics and appliances are quite dependent on fiber reinforced plastics, and these composites are routinely designed, manufactured and used. The success of fiber composites results from the ability to make use of the outstanding strength, stiffness and low specific gravity of fibers such as glass, carbon and kevlar. When the outstanding mechanical properties are combined with the unique flexibility in design capability and ease of fabrication that composites offer, it is no wonder that their growth rate has far suppressed other materials.rnDesign of any structure would require mainly a complete analysis of its connections. In this paper, finite element analysis utilizing the ANSYS program is conducted on multi-bolted double shear connections (with three bolts in a row or in a column) made of glass fiber reinforced plastic members to determine the failure process, ultimate load and load distribution among the fasteners taking into consideration bolt-hole contact problem in the finite element model. For the purpose of strength characterization and design Tsai-Wu tensor polynomial is applied as the failure criterion in this analysis.
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