The behaviour of adhesive-bonded joints between
plastics (FRP) and metals was investigated using
as well as experiments. Various joint types were
single-lap joints, T-joints and two actual cases.
Non-linear finite element methods were used in the
analysis of the
joints. The importance of allowing for both geometric and
material non-linearities is shown. The single-lap joints
optimized by modifying the geometry of the joint ends.
shapes of adhesive fillet, reverse tapering of the
edges and grooves were applied in order to increase the
strength. The influence of the joint-end geometry is
different metal/FRP adherend/adhesive combinations.
the material combinations, the strength of the joints can
increased with a careful joint-end design by 90 - 250%.
The same modifications of the joint ends were applied to
T-joints. The strength of T-joints can be increased by
200% using a
proper joint-end design.
To verify the analytical results, static tests were
single-lap joints and two actual cases. Both cases were
elevated temperature. One case was tested in fatigue.
The effect of defects on the strength of single-lap
investigated experimentally. The influence of defects in
adhesive layer on the strength of the joints was
for the chosen material combination. The reduction of
was not higher than the reduction in joint area.
|Place of Publication||Espoo|
|Publisher||VTT Technical Research Centre of Finland|
|Number of pages||66|
|Publication status||Published - 1994|
|MoE publication type||Not Eligible|
- fiber reinforcement
- adhesive bonding
- bonding strength
- finite element analysis