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2.4 ADHESION TERMS
ОглавлениеThe word for the stuff doing the sticking is “glue” or “adhesive”. What about the word for the thing being stuck? “Adherend” is the technical term, which can lead to phrases such as “… the adhesive attaches to the adherend…” This isn't particularly elegant, but there is no obviously better term to use.
We often have to discuss adhesion in terms of peel (pulling vertically) and shear (pulling horizontally). There is a different sort of vertical pull, the butt pull. Figure 2.7 gives you a visual indication of what these terms mean.
Figure 2.7 Whether a joint is tested in peel (vertical forces), shear (horizontal forces), or butt (whole sample vertical pull) makes a great difference to the effective strength.