Technical note: A reduced integration mindlin beam element for linear elastic stress analysis of curved pipes under generalized in-plane loading

• Tipo: Artigo em Revista Científica Internacional
• Data: 1992

Autores

Francisco Queirós Melo (Autor) FEUP; Paulo Tavares de Castro (Autor) FEUP

Revista

Título: Computers and Structures

Vol. 43 Nº 4

Páginas: 787-794

ISSN: 0045-7949

Editora: Elsevier

Outras Informações

Resumo (PT): This paper presents a ring element for the analysis of in-plane bending of curved pipes. The element is derived from the arch bending theory using short, straight elements as an approach to the curved structure. Each curved pipe element is considered as a straight thin-walled CO -continuity boam element for the purpose of the derivation of the beam stiffness matrix terms. The assumption of the straight elements does not involve ovalization and warping of the transverse section; for the stiffness terms concerning the distortion of the transverse section, the pipe element is assumed curved. This method leads to the important advantage of generating a zero stress field along the curved centroidal line of the element under pure in-plane bending and to the satisfaction of the 'patch test'.

Abstract (EN): This paper presents a ring element for the analysis of in-plane bending of curved pipes. The element is derived from the arch bending theory using short, straight elements as an approach to the curved structure. Each curved pipe element is considered as a straight thin-walled CO -continuity boam element for the purpose of the derivation of the beam stiffness matrix terms. The assumption of the straight elements does not involve ovalization and warping of the transverse section; for the stiffness terms concerning the distortion of the transverse section, the pipe element is assumed curved. This method leads to the important advantage of generating a zero stress field along the curved centroidal line of the element under pure in-plane bending and to the satisfaction of the 'patch test'.

Idioma: Português

Tipo (Avaliação Docente): Científica

Nº de páginas: 8