Analysis of parallelism tolerances and its influence on Bearing tension tests on structural composite performance according to ASTM D5961

Abstract

This article has the purpose of verifying the parallelism geometrical tolerance application on the response of single lap composite joints, riveted with two fasteners, for bearing test in tension, according to ASTM D5961 -procedure B, using for this finite element analysis software and short bibliographic review. It was also studied a more affordable for manufacturing alternative, with 1 mm of parallelism tolerance. Furthermore, it was mentioned variables on the composite joints obtainment which are more critical for its structural performance, as hole/fastener gap, pitch, fiber/matrix mating, lay-up and edge distance, for example, and, in conclusion, raised as a hypothesis, that an error in the order of magnitude of tenth millimeter of parallelism would not affect the bearing primary failure in a significant manner.

Study on Bearing Strength and Failure Modes of Single Bolted Joint Carbon/Epoxy Composite Materials

“…Guido Di Bella et al investigated orbital riveting as an effective connecting method. At the same time, Lu-ana Pereira Dalla Mariga et al investigated the impact of geometrical tolerance on single-lap composite joints riveted with two fasteners [ 30 , 31 ]. Countersunk bolts have been investigated for the correction of drilling-induced faults, as well as the influence of stacking sequences on the bearing strength of composite bolted joints [ 32 , 33 , 34 ].…”