Thermo-Mechanical Process-Induced Residual Stresses and Deformation Analysis During Manufacturing of Hull Structure

Saad Ahmed; Muhammad Asif; Asad Ali Zaidi

doi:10.36561/ING.27.7

Autores

Saad Ahmed National University of Sciences and Technology, Pakistan https://orcid.org/0009-0005-4851-788X
Muhammad Asif National University of Sciences and Technology, Pakistan https://orcid.org/0000-0003-4318-8253
Asad Ali Zaidi Islamic University of Madinah, Arabia Saudita https://orcid.org/0000-0001-5457-5684

DOI:

https://doi.org/10.36561/ING.27.7

Palavras-chave:

Estrutura do casco, Deformações de soldagem, Análise de elementos finitos, Tensões residuais, Transferência transitória de calor

Resumo

Estruturas de casco, como placas rígidas e painéis finos, são os blocos de construção das estruturas de navios e, portanto, entender seu processo de fabricação é de extrema importância. O processo de soldagem tem sido amplamente utilizado para unir reforços, longarinas e vigas no prato. A carga termo-mecânica e as restrições durante o processo de soldagem geralmente induziam deformações e tensões residuais. É necessário um profundo entendimento dos parâmetros do processo durante o processamento termo-mecânico para controlar a deformação induzida pelo processo. Portanto, este estudo tem como objetivo investigar a deformação e a geração de tensão térmica em estruturas de casco (painéis/placas rígidas) durante processos termo-mecânicos, como soldagem. Uma abordagem de modelagem de elementos finitos foi proposta ao incorporar o comportamento do material termoelástico-elástico térmico e não linear. Os painéis finos com diferentes configurações geométricas e condições de contorno foram simuladas usando análise de deformações de estresse de transferência de transferência transitória para simular cenários da vida real. Ambas as abordagens de modelagem fornecem uma visão útil sobre a compreensão da natureza complexa da deformação e das tensões residuais construídas. No entanto, os resultados da análise de deformação transitória por transferência de calor de transferência de calor foram encontrados em uma concordância razoavelmente boa com dados experimentais.

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