The Results tab displays a number of useful quantities for evaluating your bolted connection. The mode of failure, bearing margin, shear margin, net tension margin, fastener margin, and sleeve margin are reported for each plate in the connection.
- Mode - If failure is predicted, this column will report the specific mode of failure. Three modes of failure are possible: Bearing, Shear, and Net Tension.
- Bearing Margin - Defined as the factor of safety minus one ( = FOS - 1) for the bearing failure mode. If bearing failure is predicted, the bearing margin will be a number < 0.
- Shear Margin - Defined as the factor of safety minus one ( = FOS - 1) for the shear failure mode. If shear failure is predicted, the shear margin will be a number < 0.
- Net Tension Margin - Defined as the factor of safety minus one ( = FOS - 1) for the net tension failure mode. If net tension failure is predicted, the net tension margin will be a number < 0.
- Fastener Margin - Defined as the factor of safety minus one ( = FOS - 1) for the bolt. If bolt failure is predicted, the fastener margin will be a number < 0. The fastener margin is always reported in the row for Plate 1, regardless of the connection design.
- Sleeve Margin - If a fastener sleeve is included in the simulation, the sleeve margin is defined as the factor of safety minus one ( = FOS - 1) for the sleeve. If sleeve failure is predicted, the sleeve margin will be a number < 0. The sleeve margin is always reported in the row for Plate 1, regardless of the connection design. If the fastener sleeve is not included in the analysis, the sleeve margin is reported as N/A.