TY - JOUR
T1 - Influence of geometrical parameters on the strength of Hybrid CFRP-aluminium tubular adhesive joints
AU - Lavalette, Nicolas P.
AU - Bergsma, Otto K.
AU - Zarouchas, Dimitrios
AU - Benedictus, Rinze
PY - 2020/5/15
Y1 - 2020/5/15
N2 - Tubular adhesive joints, used in truss structures to join pultruded carbon fibre-reinforced polymer members to aluminium nodes, are modelled with varying dimensions. The numerical model uses a Cohesive Zone Modelling formulation with a trapezoidal traction-separation law for the adhesive layer, and experimental tests are carried to validate it. The results showed that the joint strength increases significantly with the bonding area, with a limit on the overlap length above which it stops increasing. This upper limit is affected by the thickness and tapering angle of the adherends, due to their influence on the shear stress distribution along the overlap. On the other hand, the adhesive thickness has only a marginal influence on the joint strength.
AB - Tubular adhesive joints, used in truss structures to join pultruded carbon fibre-reinforced polymer members to aluminium nodes, are modelled with varying dimensions. The numerical model uses a Cohesive Zone Modelling formulation with a trapezoidal traction-separation law for the adhesive layer, and experimental tests are carried to validate it. The results showed that the joint strength increases significantly with the bonding area, with a limit on the overlap length above which it stops increasing. This upper limit is affected by the thickness and tapering angle of the adherends, due to their influence on the shear stress distribution along the overlap. On the other hand, the adhesive thickness has only a marginal influence on the joint strength.
KW - Adhesive joints
KW - Cohesive zone modelling
KW - Ductile adhesives
KW - Hybrid joints
KW - Mechanical testing
KW - Tubular joints
UR - http://www.scopus.com/inward/record.url?scp=85079867539&partnerID=8YFLogxK
U2 - 10.1016/j.compstruct.2020.112077
DO - 10.1016/j.compstruct.2020.112077
M3 - Article
AN - SCOPUS:85079867539
VL - 240
JO - Composite Structures
JF - Composite Structures
SN - 0263-8223
M1 - 112077
ER -