Metallic Joint Bearing Strength 4

[koopas]

Hello all,

This question has been troubling me for a while...

How would you calculate the joint bearing allowable of a single shear joint, IF the tested joint allowable for your particular configuration was not available from MIL-HDBK 5 or the SRM's?

It's been beaten into me that using Fbru*d*t is not recommended in single shear joints since the Fbru value is obtained from a double shear test. Using Fbru in single shear joints greatly over-estimates the joint strength.

Is there some sort of correction or knock-down factor to reduce Fbru in single-shear joints? What do you guys/gals do?

Last resort to find out the joint's bearing strength would be to use the shear-out or tear-out equation based on material Fsu but I'd rather not go down that road.

I am dumbfounded.

Thanks for your help.
Alex

 

[koopas]

Hello Sparweb,

Thanks for the smoking rivets link. The article mentions that a smoking rivet is a loose or working rivet. Working?? (Aircraft lingo baffles me sometimes.)

Pardon my ignorance, but what do you mean by "The Delta-Fsu method and the Grumman data exchange places a few times."?

Have a good weekend,
Alex