Adhesively bonded joints have been applied widely in
many industries especially with composite materials.
Because of the unavoidable geometric change,
discontinuity or material change, the joints or the
joint areas are potentially the weakest regions in
structures. Thus the design of the structural joints
is very critical for the whole structure and must be
very carefully designed. In this book, two new
designs were introduced to improve the performance of
the double-strap joint. For the first design, thin
step composite laminate attachments were designed and
attached onto the conventional double-strap joints.
For the second one, multiple layers of straight
attachments were used instead of one single layer. In
both new designs, additional load transfer paths were
created and localized interfacial stress
concentrations at the leading joint edge of the joint
were reduced. Experiments were performed and the
results revealed that both of the new designs had
significantly greater strengths than the conventional
double-strap joint. Interfacial stresses along the
bondlines were analyzed in order to understand the
increase in joint strength and the change of failure
modes in the joints.
many industries especially with composite materials.
Because of the unavoidable geometric change,
discontinuity or material change, the joints or the
joint areas are potentially the weakest regions in
structures. Thus the design of the structural joints
is very critical for the whole structure and must be
very carefully designed. In this book, two new
designs were introduced to improve the performance of
the double-strap joint. For the first design, thin
step composite laminate attachments were designed and
attached onto the conventional double-strap joints.
For the second one, multiple layers of straight
attachments were used instead of one single layer. In
both new designs, additional load transfer paths were
created and localized interfacial stress
concentrations at the leading joint edge of the joint
were reduced. Experiments were performed and the
results revealed that both of the new designs had
significantly greater strengths than the conventional
double-strap joint. Interfacial stresses along the
bondlines were analyzed in order to understand the
increase in joint strength and the change of failure
modes in the joints.