Fatigue Life Estimation for Different Geometrical Configuration of Load-Carrying Cruciform Joint using ABAQUS and Fe-Safe

Zulqarnain Mukhtar Mahmood; Muhammad Asif; Syed Asad Ali Zaidi

doi:10.36561/ING.26.7

Autores

Zulqarnain Mukhtar Mahmood NED University of Engineering and Technology, Pakistán https://orcid.org/0009-0003-4412-0477
Muhammad Asif NED University of Engineering and Technology, Pakistan https://orcid.org/0000-0003-4318-8253
Syed Asad Ali Zaidi NED University of Engineering and Technology, Pakistán https://orcid.org/0000-0001-5457-5684

DOI:

https://doi.org/10.36561/ING.26.7

Palavras-chave:

Junta cruciforme portante, Análise de fadiga, Geometrias elástico-plásticas FEA, ABAQUS, Fe-Safe, 2D e 3D cruciformes

Resumo

Este trabalho de pesquisa concentra-se na análise de fadiga de juntas cruciformes de suporte de carga compostas por placas espessas, que são componentes cruciais em estruturas de navios. O estudo investiga a vida à fadiga de juntas cruciformes soldadas em ângulo usando geometrias 2D e 3D. Várias condições de carregamento e condições de contorno são consideradas, e uma análise de elementos finitos elástico-plásticos é conduzida usando ABAQUS 2021. O número de ciclos até a falha é estimado usando Fe-Safe e o modelo Brown Miller Morrow baseado em deformação. Os resultados, apresentados através de gráficos de contorno, repetições de log de vida útil e gráficos de faixa de carga versus número de ciclos, revelam o comportamento da fadiga e os locais de falha. Adicionalmente, a metodologia é validada frente a dados experimentais da literatura, demonstrando sua aplicabilidade. As descobertas fornecem informações sobre as características de fadiga das juntas cruciformes de suporte de carga em chapas grossas, contribuindo para melhorar o design e a confiabilidade na indústria de construção naval.

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