Glossary entry (derived from question below)
English term or phrase:
flexibility stress
Spanish translation:
esfuerzo por flexibilidad
Added to glossary by
María Florencia Méndez
Apr 14, 2017 19:27
7 yrs ago
2 viewers *
English term
flexibility stress
English to Spanish
Tech/Engineering
Other
tubes
Flexibility Stresses and Stresses Due to Periodic or Cyclic Fatigue Loading
(a) The stress range in unrestrained piping due to thermal expansion and periodic, vibrational, or cyclic displacements or loads shall be computed as
SE p ME/Z
whereME is the resultant intensified moment range from one stress state to another. The resultant intensified moment shall be calculated as
ME p [(iiMi)2 + (ioMo)2 + Mt 2]1/2, lb-in. (N·m)
(a) The stress range in unrestrained piping due to thermal expansion and periodic, vibrational, or cyclic displacements or loads shall be computed as
SE p ME/Z
whereME is the resultant intensified moment range from one stress state to another. The resultant intensified moment shall be calculated as
ME p [(iiMi)2 + (ioMo)2 + Mt 2]1/2, lb-in. (N·m)
Proposed translations
(Spanish)
3 +3 | esfuerzo por flexibilidad | Gabriela Alvarez |
Proposed translations
+3
37 mins
Selected
esfuerzo por flexibilidad
El análisis de esfuerzos de las tuberías (análisis de flexibilidad térmica) predice los esfuerzos de las tuberías y las cargas que sufren los equipos producto de los gradientes de temperatura, los transitorios térmicos, el peso, la presión y la deformación por abulonamiento. Generalmente, es necesario realizar este estudio en tuberías que sufren grandes fluctuaciones de temperatura o en tramos largos de tuberías, como las tuberías calientes que van hacia los enfriadores o los cabezales. En los casos en que los equipos sean sensibles a las cargas externas también podría ser necesario realizar un análisis de esfuerzos de las tuberías.
• El análisis de esfuerzos de las tuberías reduce las deflexiones y esfuerzos estáticos y en general implica brindar flexibilidad de forma selectiva a una variedad de soportes de apoyo, guías, tapones de línea, soportes colgantes, soportes de resorte y sujetadores.
http://es.betamachinery.com/services/pipe-stress-analysis
Análisis de esfuerzos por flexibilidad para verificar que los esfuerzos producidos en la tubería por los distintos tipos de carga estén dentro de los valores admisibles, a objeto de comprobar que las cargas sobre los equipos no sobrepasen los valores límites, satisfaciendo así los criterios del código a emplear.
http://www.monografias.com/trabajos25/disenio-tuberias/disen...
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Note added at 1 hr (2017-04-14 21:22:35 GMT)
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"Fatiga" es "fatigue" en estática y resistencia de materiales. En inglés "stress" y "fatigue" son conceptos diferentes.
Another mechanism that can lead to failure is fatigue of the tubes. Pressure equipment, unlike rotating machinery and aircraft structures, is not usually subjected to large numbers of load cycles during its lifetime, and ductile metals can absorb surprisingly large strains for limited numbers of cycles. When, however, the utmost in reliability and efficient utilization of material is required it becomes necessary to calculate pressure stresses and thermal stresses in detail and to determine whether or not fatigue failure is possible in a few hundred cycles. The fatigue curve shows stress or strain versus cycles and which contains sufficient safety factors to give safe allowable operating cycles for a given value of calculated stress. The stress values on the fatigue curves should be directly comparable to stress values which a designer calculates using his usual methods of analysis for pressure stress, thermal stress, stress concentration, etc4.
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516...
https://en.wikipedia.org/wiki/Fatigue_(material)
• El análisis de esfuerzos de las tuberías reduce las deflexiones y esfuerzos estáticos y en general implica brindar flexibilidad de forma selectiva a una variedad de soportes de apoyo, guías, tapones de línea, soportes colgantes, soportes de resorte y sujetadores.
http://es.betamachinery.com/services/pipe-stress-analysis
Análisis de esfuerzos por flexibilidad para verificar que los esfuerzos producidos en la tubería por los distintos tipos de carga estén dentro de los valores admisibles, a objeto de comprobar que las cargas sobre los equipos no sobrepasen los valores límites, satisfaciendo así los criterios del código a emplear.
http://www.monografias.com/trabajos25/disenio-tuberias/disen...
--------------------------------------------------
Note added at 1 hr (2017-04-14 21:22:35 GMT)
--------------------------------------------------
"Fatiga" es "fatigue" en estática y resistencia de materiales. En inglés "stress" y "fatigue" son conceptos diferentes.
Another mechanism that can lead to failure is fatigue of the tubes. Pressure equipment, unlike rotating machinery and aircraft structures, is not usually subjected to large numbers of load cycles during its lifetime, and ductile metals can absorb surprisingly large strains for limited numbers of cycles. When, however, the utmost in reliability and efficient utilization of material is required it becomes necessary to calculate pressure stresses and thermal stresses in detail and to determine whether or not fatigue failure is possible in a few hundred cycles. The fatigue curve shows stress or strain versus cycles and which contains sufficient safety factors to give safe allowable operating cycles for a given value of calculated stress. The stress values on the fatigue curves should be directly comparable to stress values which a designer calculates using his usual methods of analysis for pressure stress, thermal stress, stress concentration, etc4.
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516...
https://en.wikipedia.org/wiki/Fatigue_(material)
Peer comment(s):
agree |
Patricia Fierro, M. Sc.
43 mins
|
¡Gracias Patricia!:)
|
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agree |
Benigno Torres
1 hr
|
¡Gracias Benigno! :)
|
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agree |
JohnMcDove
5 hrs
|
¡Gracias John!:)
|
4 KudoZ points awarded for this answer.
Comment: "Thanks"
Discussion
"Fatiga" es "fatigue" en estática y resistencia de materiales. En inglés "stress" y "fatigue" son conceptos diferentes.
Another mechanism that can lead to failure is fatigue of the tubes. Pressure equipment, unlike rotating machinery and aircraft structures, is not usually subjected to large numbers of load cycles during its lifetime, and ductile metals can absorb surprisingly large strains for limited numbers of cycles. When, however, the utmost in reliability and efficient utilization of material is required it becomes necessary to calculate pressure stresses and thermal stresses in detail and to determine whether or not fatigue failure is possible in a few hundred cycles. The fatigue curve shows stress or strain versus cycles and which contains sufficient safety factors to give safe allowable operating cycles for a given value of calculated stress. The stress values on the fatigue curves should be directly comparable to stress values which a designer calculates using his usual methods of analysis for pressure stress, thermal stress, stress concentration, etc4.
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516...
https://en.wikipedia.org/wiki/Fatigue_(material)
https://es.wikipedia.org/wiki/Fatiga_de_materiales
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Gracias Gaby