where the two substructures do overlap the lap joint is located. Each sub-beam has a dimension of 100mm x 20 mm x 1mm and the overlapping area is of the dimension 40mm x 20 mm. The used material is iron and linear four node shell elements with a dimension of 2mm x 2mm have been used. Figure 2: FE model of generic beam example and deformation shape of static force response computation In a first step five different joint interface mode bases have been computed. One according to the general eigenvalue problem based approach outlined in section 3 and four more according to the POD based approaches of section 5.1 to 5.4 . Note that the joint interface modes are computed for normal contact (y direction) only. Consequently, no tangential or friction forces are considered in the subsequent mode based analyses. Table 1: First seven JIM according to different approaches 24
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