NAS6605-12 Bolts Bending Stress
NAS6605-12 Bolts Bending Stress
(OP)
Hello,
I wanted to check what would be bending stress allowable for NAS6605-12 bolts which has only 160 Ksi as Ftu and 95Ksi as Fsu.
Please advise if anyone has idea of dealing with same.
I wanted to check what would be bending stress allowable for NAS6605-12 bolts which has only 160 Ksi as Ftu and 95Ksi as Fsu.
Please advise if anyone has idea of dealing with same.





RE: NAS6605-12 Bolts Bending Stress
I've never seen an allowable for bolt bending stress. If bending was an issue I just did something like as shown in Bruhn D1.14. I think there's something in Flabel as well.
RE: NAS6605-12 Bolts Bending Stress
How are you calculating the bending moment in the fastener? Are you accounting for the moment reaction by the head/nut?
Where along the bolt is the critical moment?
Why can you not use the Ftu allowable against the peak stress? Are you trying to account for plastic bending?
RE: NAS6605-12 Bolts Bending Stress
RE: NAS6605-12 Bolts Bending Stress