WJM  Vol.5 No.12 , December 2015
Analytical Model on Steel Tanks Damaged by Corrosion
ABSTRACT
The mechanical behavior of steel employed in the hull of a steel tank damaged by corrosion has been analyzed. The tank was used to filter a deep-water well for an 8-year period. Influence of porosity and dissolution of material may be introduced in the main constitutive relation adding a new damage variable C, which describes electrochemical damage. An elastoplastic theoretical model coupled to damage of a member, and other for damage related to thermodynamic energy are developed. This theoretical development has been used to analyze mechanical behavior of steel used in the body of a steel tank damaged by corrosion in water purifier plants, Eastern System, Mexico City, where three of every ten filters show excessive corrosion inside the steel plate filtration tanks. With samples taken from steel of the tank’s hull and reinforcement of false bottom supporting filtering material inside the tank, metallography tests were carried out; localized and generalized types of corrosion were determined, as well as the type of corrosion composites generated due to anticorrosive coating used inside the tank from its manufacturing.

Cite this paper
Casanova-del-Angel, F. and Gaytán-López, M. (2015) Analytical Model on Steel Tanks Damaged by Corrosion. World Journal of Mechanics, 5, 274-285. doi: 10.4236/wjm.2015.512026.
References
[1]   Bolotin, V.V. and Shipkov, A.A. (2001) Mechanical Aspects of Corrosion Fatigue and Stress Corrosion Cracking. International Journal of Solids and Structures, 38, 7297-7318.

[2]   Gérard, B., Pijaudier-Cabot, G. and La Borderie, C. (1998) Coupled Diffusion-Damage Modelling and the Implications on Failure Due to Strain Localisation. International Journal of Solids and Structures, 35, 4107-4120.

[3]   Fair, G.M., Geyer, J.C. and Okun, D.A. (1979) Purificación de agua y tratamiento y remoción de aguas residuals. Volumen II. Editorial LIMUSA. México.

[4]   DGCOH (1997-1) Elaboración de anteproyectos para solucionar los problemas de suministro de agua en diversas colonias de la Delegación Iztapalapa. Consultoría en Ingeniería Itzana S.A. de C.V. Dirección Técnica, Subdirección de Programación. U.D. Planes Hidráulicos Delegacionales. Dirección General de Construcción y Operación Hidráulica. Secretaría de Obras y Servicios. GDF. México.

[5]   DGCOH (1997-2) Diagnóstico de la problemática de suministro de agua potable y drenaje en la Delegación Iztapalapa. Automatizaciones y proyectos de Ingeniería S.A. de C.V. Dirección General de Construcción y Operación Hidráulica. Secretaría de Obras y Servicios. GDF. México.

[6]   DGCOH (1995) Criterio para sancionar la calidad de agua potable. Dirección General de Construcción y Operación Hidráulica. Secretaría de Obras y Servicios. DDF. México.

[7]   ASTM (American Society of Testing Material) Designation: E8-01 (2002) Standard Test Methods for Tension Testing of Metallic Materials.

[8]   RCDF (2004) Reglamento de Construcciones para el Distrito Federal. GDF. México.

[9]   Casanova-del-Angel, F. and Toquiantzi Butrón, R. (2008) Corrosion Phases of Structural Shapes Exposed to the Atmosphere. Corrosion Science, 50, 2288-2295.
http://dx.doi.org/10.1016/j.corsci.2008.05.015

[10]   Standard API 620 (1990) Para tanques de almacenamientos sometidos a presiones internas cercanas a 1 kg/cm2.

[11]   Standard API 650 (1998) Aplicable a grandes tanques horizontales o verticales soldados en campo y presión de operación menores de 1 Kg/cm2.

 
 
Top