Аннотация
Integrated in composite electrical insulators, metaUfibreglass-reinforced-plastic (GRP) joints made of an epoxy rod reinforced
with E-gla~ fibres and of two crimped steel end-fittings are investigated numerically and experimentally. Numerical stress and strain
distributions through the bond during the crimping phase and under an axial tensile test are calculated with a solid 3D finite element
model and the damage initiation in the composite is highlighted. The simulations are compared to experimental data obtained from
several joint specimens tested under pulling on an experimental set-up equipped with strain gauges and an acoustic emission system.
Good correlation between the finite element predictions and the test results is found. The numerical and experimental study is also
completed with a sensitivity analysis of the main geometrical parameters of the joints.
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