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ItemAnais Comparing Tsai-Wu and Tsai-Hill failure criteria for high-pressure vessel design under uncertainty(ABCM, 2023-12-15) Novais, Henrique Cordeiro [UNESP]; Silva, Samuel da [UNESP]; Alves, Mariana Pimenta [UNESP]; Cimini Junior, Carlos Alberto [UNESP]; Universidade Federal de Minas Gerais - UFMGThis study compares two widely used failure theories for characterizing composite materials: the Tsai-Wu and Tsai-Hill failure criteria. The paper’s main objective is to evaluate the performance of both criteria in a high-pressure vessel design project, taking into account uncertainties in material properties at the lamina level and in the internal pressure applied to the vessel. The analysis of histograms of failure index fluctuations reveals that, contrary to a purely deterministic approach, each failure criterion can be more or less conservative when there is variability in the system due to different factors. Additionally, a global sensitivity analysis using Sobol indices was conducted to determine the contributions of individual inputs to the output uncertainty. This probabilistic approach emphasizes the importance of considering uncertainty analysis to design structures that are both safer and more cost-effective.ItemDado de pesquisa Variação do aporte térmico na soldagem híbrida GTAW/Laser Nd:YAG pulsado do aço UNS S32750 com adição de nitrogênio ao gás de proteção(2023-06-20) Videira, Arthur Moraes e; Universidade Estadual Paulista (Unesp)