An alternative design for internal and external semi-rigid composite joints. Part II: Finite element modelling and analytical study

Tests on semi-rigid composite joints with the alternative configuration proposed in Part I of this paper are simulated by using the finite element method. The finite element models are adjusted, compared and validated with the experimental results until reliable and robust models are achieved. These models are used to compare the performance of the conventional joints with the alternative design that has been proposed. The internal joints with the proposed design show improved resistance and stiffness, more acutely as the moments on either side of the joint become increasingly unbalanced. On external joints, the same values are obtained as with the conventional design, but without the need for a cantilever. A parametric study is also carried out on external and internal joints following the alternative design in order to define the components which intervene in it as well as to develop the corresponding analytical model.