1. Scope

Keywords

Rationale

These are tests that are performed by original equipment manufacturers (OEMs) in the aerospace industry to complement D5766/D5766M for open-hole tension, D6484/D6484M for open-hole compression, and D6742/D6742M for filled-hole tension and compression. Compared to in-plane tests, flexural loading imparts a reduced stress concentration factor at the hole in a notched laminate; thus, higher strains can be achieved in the outermost longitudinally oriented plies under bending than under in-plane loading. This capability is taken advantage of in structural analysis of bolted joints under combined in-plane and bending loads.