Autor(es):
Fonseca, E.M.M. 
; Melo, F.J.M.Q. de ; Valente, R.A.F.
Data: 2006
Identificador Persistente: http://hdl.handle.net/10198/3073
Origem: Biblioteca Digital do IPB
Detalhes do Documento
Determination of stress intensity factors along cracked surfaces in piping elbo...
Descrição
Piping elbows represent an essential role in pipework systems. These structures are part of the plant process in all industries. High safety standards in design are inherent to these projects due to complex mechanical or thermal loading. When these accessories carry defects, project engineers should assess their integrity in duty. This paper present a contribution in fracture mechanics applied to piping systems. Stress intensity factors are determined along cracked surfaces in piping elbows subjected to bending moment using a developed finite curved pipe element. This element is based in high order polynomial and trigonometric functions for rigid beam displacement and Fourier series modelling the transverse section warping or ovalization. Computational effort is saved with this element in the evaluation of the stresses or strains. Numerical tests are performed for different standard pipe elbows containing an axial or longitudinal crack. This study is compared with analyses reported by other authors.
Piping elbows represent an essential role in pipework systems. These structures are part of the plant process in all industries. High safety standards in design are inherent to these projects due to complex mechanical or thermal loading. When these accessories carry defects, project engineers should assess their integrity in duty. This paper present a contribution in fracture mechanics applied to piping systems. Stress intensity factors are determined along cracked surfaces in piping elbows subjected to bending moment using a developed finite curved pipe element. This element is based in high order polynomial and trigonometric functions for rigid beam displacement and Fourier series modelling the transverse section warping or ovalization. Computational effort is saved with this element in the evaluation of the stresses or strains. Numerical tests are performed for different standard pipe elbows containing an axial or longitudinal crack. This study is compared with analyses reported by other authors.
Tipo de Documento
Documento de conferência
Idioma Inglês
Idioma Inglês
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||