Encontrados 7 documentos, a visualizar página 1 de 1
The flexibility of steel hollow tubular sections subjected to thermal and mecha...
Fonseca, E.M.M.; Melo, F.J.M.Q. de; Valente, R.A.F.Numerical analysis of hollow tubular sections is used as a starting tool to establish the reliability assessment of these elements when mechanically or thermally loaded. To quantify the material deformation behaviour of these elements resulting from ground motion, crack propagation, effects from high temperatures, theoretical and experiments analyses can be used for testing a service reliable guarantee. Structu...
Modelo de deformação numérico e experimental em secções tubulares
Fonseca, E.M.M.; Barreira, Luísa; Melo, F.J.M.Q. de; Valente, R.A.F.Neste artigo apresenta-se um modelo numérico e experimental para a análise de secções tubulares quando submetidas a carregamentos transversais. O objectivo consiste na avaliação da integridade estrutural destes elementos função da sua resistência à deflexão através do seu comportamento para além do domínio elástico. O modelo numérico baseia-se na utilização de elementos sólidos com características de não linear...
Modelo de deformação numérico e experimental em secções tubulares
Fonseca, E.M.M.; Barreira, Luísa; Melo, F.J.M.Q. de; Valente, R.A.F.Neste artigo apresenta-se um modelo numérico e experimental para a análise de secções tubulares quando submetidas a carregamentos transversais. O objectivo consiste na avaliação da integridade estrutural destes elementos através da sua resistência à deflexão através do seu comportamento para além do domínio elástico. O modelo numérico baseia-se na utilização de elementos sólidos com características de não linea...
Stress intensity factors for notched round bars using FEM
Fonseca, E.M.M.; Melo, F.J.M.Q. de; Valente, R.A.F.This study proposes alternative methods to estimate the stress intensity factors (SIF) of notched round components having an axial hole and subjected to an axial force or a bending moment. The method is based on analytical equations proposed by (Harris 1997) and on alternative formulation using finite element method (FEM). The objective of this work is a contribution in fracture mechanics applied to tubular sys...
Determination of stress intensity factors along cracked surfaces in piping elbo...
Fonseca, E.M.M.; Melo, F.J.M.Q. de; Valente, R.A.F.Pipe elbows play an essential role in pipework systems, once such structure elements are part of the plant process fluid conduction practically in all chemical or energy production 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 presen...
Determination of stress intensity factors along cracked surfaces in piping elbo...
Fonseca, E.M.M.; Melo, F.J.M.Q. de; Valente, R.A.F.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 for notched round bars using FEM
Fonseca, E.M.M.; Melo, F.J.M.Q. de; Valente, R.A.F.This study proposes alternative methods to estimate the stress intensity factors (SIF) of notched round components having an axial hole and subjected to an axial force or a bending moment. The method is based on analytical equations proposed by (Harris 1997) and on alternative formulation using finite element method (FEM). The objective of this work is a contribution in fracture mechanics applied to tubular sys...
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