Tension-Bearing Couples (TBC), Part III*: Developing Fastener Maximum Load Correction Factors Charts

Document Type : Original Article

Authors

1 Ph.D., Senior Structural Analysis Scientist/Engineer, Boeing Commercial Airplanes, The Boeing Company, Seattle, WA, USA.

2 Ph.D., Professor of Design and Production Engineering, German University, Cairo, Egypt.

Abstract

A study was conducted to determine the effect of fasteners/fitting modulus of elasticity ratio on the fastener maximum load correction factors obtained from realistic FEM models and the proposed enhanced analysis approach. This study entails 392 FEM and analytical model runs. Statistical analyses demonstrate that the fastener maximum load correction factors curves reach constant plateaus at a fasteners/fitting modulus of elasticity ratio of approximately 1.00. The angle factor curve, on the other hand, is increasing with increasing values of the fasteners/fitting modulus of elasticity ratio. The proposed enhanced analysis approach, together with the fastener maximum load correction factors curves of this study, can yield results that are comparable with those obtained from realistic FEM models.

Keywords