Bolt strength reduction in shear lap joint with packer
Bolt strength reduction in shear lap joint with packer
(OP)
In a bolted lap joint subject to shear and including a non structural packer (greater then 15% of the bolt diameter) what is the method of analysis for the bolt stress?





RE: Bolt strength reduction in shear lap joint with packer
RE: Bolt strength reduction in shear lap joint with packer
RE: Bolt strength reduction in shear lap joint with packer
If you cannot extend the packer and add discrete fasteners to make it structural, use the second suggestion of my first post, and increase the total fastener strength by the amount of load which would be transferred in the case of a structural packer. That should cover the problem.
As an additional check, it would be wise to do a detail analysis of the fasteners, as there will be additional bending and prying, but adding capacity as described above should result in heavier and or stronger fasteners which can handle the extra eccentricity and resultant loads.
Hope this helps.
Regards,
Lcubed
RE: Bolt strength reduction in shear lap joint with packer
I was a little short of time when I wrote my last post, so I may have omitted some detail. Since you mentioned that the thickness of the packer is >15% of the bolt diameter, it sounds as if you are using Bruhn as a reference. Is that the case?
RE: Bolt strength reduction in shear lap joint with packer
I a looking for a research paper, experimental results AISC NACA etc, where this subject is treated. To date I have not found an eloquent and comprehensive analysis of thick packers in bolted joints and it suprises me.
RE: Bolt strength reduction in shear lap joint with packer