Assessment of the structural integrity of cracked cylindrical geometries applying the EVTUBAG program.

• Luis Héctor Hernández Gómez Unidad Profesional “Adolfo López Mateos” Zacatenco-México
• Guilllermo Urriolagoitia Calderón Unidad Profesional “Adolfo López Mateos” Zacatenco-México
• Guillermo Urriolagoitia Sosa Unidad Profesional “Adolfo López Mateos” Zacatenco-México
• Juan Manuel Sandoval Pineda Escuela Superior de Ingeniería Mecánica y Eléctrica, Sección de Estudios de Posgrado e Investigación, Instituto Politécnico Nacional-México
• Emmanuel Alejandro Merchán Cruz Escuela Superior de Ingeniería Mecánica y Eléctrica, Sección de Estudios de Posgrado e Investigación, Instituto Politécnico Nacional-México
• José Francisco Guardado García Unidad Profesional “Adolfo López Mateos” Zacatenco-México

Palabras clave: longitudinal cracks, circumferential cracks, stress intensity factor, cracked cylindrical vessel and limit analysis

Resumen

In this paper, the assessment of the structural integrity of pressurized cylindrical components containing defects like cracks was performed, considering two types of failures. Brittle failure was evaluated considering Fracture Mechanics and ductile failure was calculated with a plastic analysis. For this purpose, three methods were used. Accordingly, the program EVTUBAG (evaluation of cracked pipe by its initials in Spanish) was written considering the methodologies proposed by Ruiz and Corran, ASME and Raju-Newman. This paper describes this program and relevant results are discussed.