General rivet math

Matthew

Matthew

Touchdown! Greaser!
Joined
Apr 18, 2005
Messages
18,652
Location
kojc, kixd, k34
Display Name
Display name:
Matthew
Not necessarily aviation specific:

What’s the math when it comes to spacing rivets and determining proper diameters? I’m guessing there’s a pretty well used formula somewhere. I think about this when I see rivet lines on aircraft skins, bridge supports, building beams, and all sorts of other structures.
 
Not less than 3 times the rivet diameter, measured center to center. And normally, not more than 8 times rivet diameter. I believe the preferred spacing usually works out to be around 4 times the diameter in a single row. Using a fan-spacer to set rivet pitch and maintain edge distances of the rivets on either end of the row is usually the trick.
 
wilkersk said:
Not less than 3 times the rivet diameter, measured center to center. And normally, not more than 8 times rivet diameter. I believe the preferred spacing usually works out to be around 4 times the diameter in a single row. Using a fan-spacer to set rivet pitch and maintain edge distances of the rivets on either end of the row is usually the trick.
Click to expand...
That is the minimum distance. I've never seen a maximum given.
 
Matthew said:
Not necessarily aviation specific:

What’s the math when it comes to spacing rivets and determining proper diameters? I’m guessing there’s a pretty well used formula somewhere. I think about this when I see rivet lines on aircraft skins, bridge supports, building beams, and all sorts of other structures.
Click to expand...
Rivet spacing is normally given in the manufacturers structural repair manual. EXP aircraft have data given in the kit or blue prints directions
 
You must log in or register to reply here.
Back
Top