General Adhesive Joint Design Guidelines - Scabro
General Adhesive Joint Design Guidelines - Scabro
General Adhesive Joint Design Guidelines - Scabro
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<strong>General</strong> <strong>Adhesive</strong> <strong>Joint</strong> <strong>Design</strong> <strong>Guidelines</strong><br />
♦<strong>Design</strong> for shear and compressive loading; avoid peel and high tensile<br />
loading<br />
♦For structural applications, attempt to design for bond widths of at least<br />
¾”<br />
♦Attempt to hide cut edges to minimize chances of peel loading<br />
♦Do not locate bonded joints where water will pool<br />
♦Consider the effect of thermal expansion<br />
♦Use strategic placement of welds or mechanical fasteners in areas of<br />
unavoidable peel and tensile loads
<strong>General</strong> <strong>Adhesive</strong> <strong>Joint</strong> <strong>Design</strong> Do’s and Don’ts<br />
Do<br />
Don’t<br />
compression<br />
& shear<br />
compression<br />
peel, tension<br />
& shear<br />
tension<br />
compression<br />
& shear<br />
compression<br />
& shear<br />
tension &<br />
shear<br />
peel, tension<br />
& shear
<strong>Joint</strong> <strong>Design</strong> Alternatives<br />
Back-welded sheet<br />
to extruded channel<br />
Simple lap bond<br />
GOOD<br />
VERY<br />
GOOD<br />
Improved lap bond<br />
BETTER<br />
strategically<br />
located fasteners
<strong>Joint</strong> <strong>Design</strong> Alternatives<br />
Riveted sheet overlap on channel<br />
Splice / double lap<br />
VERY GOOD<br />
FAIR<br />
Double splice<br />
VERY GOOD<br />
Bonded lap with transition
<strong>Joint</strong> <strong>Design</strong> Alternatives<br />
Smooth wall riveted design<br />
Smooth wall bonded design
<strong>Joint</strong> <strong>Design</strong> Alternatives<br />
Back welded Miter <strong>Joint</strong><br />
Reinforced bonded<br />
Miter <strong>Joint</strong>
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