A modified Arcan test for mixed-mode loading of bolted joints in composite structures

摘要

A novel modified Arcan test rig has been developed for testing the combined loading performance of bolted joints in composite laminates. The fixture was designed to complement existing bearing test standards (ASTM D5961) and pull-through test standards (ASTM D7332) for fastened joints in composite laminates. The new mixed-mode loading fixture fills a crucial niche, as interaction between pull-through and bearing failure modes can potentially reduce the overall joint performance and lead to anti-conservative designs.