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Trustworthiness in Modeling Unreinforced and Reinforced T-Joints with Finite Elements

DICAM Department, University of Bologna, Viale del Risorgimento 2, 40136 Bologna, Italy
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Math. Comput. Appl. 2019, 24(1), 27; https://doi.org/10.3390/mca24010027
Received: 26 November 2018 / Revised: 4 February 2019 / Accepted: 16 February 2019 / Published: 20 February 2019
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Abstract

As required by regulations, Finite Element Analyses (FEA) can be used to investigate the behavior of joints which might be complex to design due to the presence of geometrical and material discontinuities. The static behavior of such problems is mesh dependent, thus these results must be calibrated by using laboratory tests or reference data. Once the Finite Element (FE) model is correctly setup, the same settings can be used to study joints for which no reference is available. The present work analyzes the static strength of reinforced T-joints and sheds light on the following aspects: shell elements are a valid alternative to solid modeling; the best combination of element type and mesh density for several configurations is shown; the ultimate static strength of joints can be predicted, as well as when mechanical properties are roughly introduced for some FE topologies. The increase in strength of 12 unreinforced and reinforced (with collar or doubler plate) T-joints subjected to axial brace loading is studied. The present studies are compared with the literature and practical remarks are given in the conclusion section. View Full-Text
Keywords: numerical modeling; joint static strength; finite element method; parametric investigation; reinforced joint (collar and doubler plate) numerical modeling; joint static strength; finite element method; parametric investigation; reinforced joint (collar and doubler plate)
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Ouakka, S.; Fantuzzi, N. Trustworthiness in Modeling Unreinforced and Reinforced T-Joints with Finite Elements. Math. Comput. Appl. 2019, 24, 27.

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