Page 133 - Handbook of Adhesives and Sealants
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102 Chapter Three
Figure 3.5 Effect of overlap
length on failure load using duc-
tile and brittle adhesives. 4
Figure 3.6 The effect of ratio of length of overlap to ad-
herend thickness (l/t) on adhesive strength at three test
temperatures for aluminum joints bonded with a nitrile
rubber adhesive. 5
with a nitrile-rubber adhesive. From such a chart, the design engineer
can determine the overlap length required for a given adherend thick-
ness to obtain a specific joint strength.
3.3.4 Adherend properties
The properties of the substrates being joined have a major influence
on the stress distribution in the joint. Non-uniform stress distribution
in the adhesive is caused by the relative displacement of the adher-
ends due to the strain in the adherends. Since the adhesive must ac-
