Page 144 - Handbook of Adhesives and Sealants
P. 144
Joint Design 113
and T angle joints, shown in Fig. 3.17, offer greatly improved prop-
erties. The T design is the preferable angle joint because of its large
bonding area and good strength in all directions.
Corner joints for relatively flexible adherends such as sheet metal
should be designed with reinforcements for support. Various corner-
joint designs are shown in Fig. 3.18. With very thin adherends, angle
joints offer low strength because of high peel concentrations. A design
consisting of right-angle corner plates or slip joints offers the most
satisfactory performance. Thick, rigid members such as rectangular
bars and wood may be bonded with an end lap joint, but greater
strength can be obtained with mortise and tenon. Hollow members,
such as extrusions, fasten together best with mitered joints and inner
splines.
Figure 3.17 Angle joint designs. 9
Figure 3.18 Corner joint designs. (a) Corner joints for relatively thin adherends. (b)
Corner joints for thick adherends. 9,11
