PSI - Issue 37

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Gonzalo Moltini et al. / Procedia Structural Integrity 37 (2022) 417–424 Moltini & Baño/ Structural Integrity Procedia 00 (2019) 000 – 000

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Figure 5: Maximum shear stress in the middle section of the connectors The results show that as the height of the connector increases ( h c ), the maximum shear stress decreases. In a similar way, for all the studied cases of h c , as the width of the connector ( 1 ) increases, the maximum shear stress decreases up to 42%, which occurs for the case of TTPs with connectors of h c =80 and α =45º. The dove-tail angle has a slight influence on the shear stresses. The maximum difference of the shear stresses is observed for the lowest width of the connectors (40 mm), with values of the relative difference between 45º and 75º of 7%, 11%, 14% and 8% connector heights of 40 mm, 60 mm, 80 mm and 100 mm, respectively. For the highest width of connectors (100 mm), the relative difference decreases up to 3-5 %. 3.2. Deflection The deflection of the TTPs was analysed measuring the maximum displacement in the bottom layer of the panels at the middle of the spam with the aim to determine the best parameter combination of the connectors resulting in higher stiffness of the panels. Fig. 6 shows diagrams of the maximum deflection obtained for the different parameter combinations of the connectors. As was explained for the Fig. 6, different colour curves show the variation of the deflection per angle of the dove-tail joint ( α ) depending on the width ( b 1 ) and the height of the connector ( h c ). .