Caracterización mecánica y microestructural de acero naval sometido a cargas dinámicas por explosión

Autores/as

  • José A. Alarcón Ahumada
  • Juan Fajardo Cuadro
  • Jairo Useche Vivero
  • Carlos Cano Restrepo
  • Diana Ramírez Wilches

Palabras clave:

acero ASTM A 131 grado A, explosiones, deformación plástica, ensayos destructivos, ensayos no destructivos, paneles navales

Resumen

El trabajo presenta la caracterización mecánica y microestructural de láminas de acero ASTM A 131 grado A que conforman paneles navales (láminas reforzadas con relaciones de aspecto l/b definidas), realizada mediante ensayos destructivos, para establecer la respuesta mecánica de estructuras navales sometidas a ese tipo de cargas. Se hicieron mediciones de microdureza, tamaño de grano y ensayos de tensión a especímenes del material antes y después del impacto. El material impactado fue seleccionado de paneles estructurales sometidos a explosiones controladas cercanas generadas con cargas de 250 g de pentolita, dispuestas a distancias predeterminadas. Para la caracterización se rechazaron paneles con la presencia de fisuras. Se presentaron variaciones importantes en microdureza y características mecánicas, sin embargo, no se observaron cambios microestructurales en tamaño de grano que fueran significativos.

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Referencias bibliográficas

Callistter, W. (2003) Materials science and engineering. An introduction. New York, John Wiley & Sons.

Dowling, N. (1999) Mechanical Behavior of materials. New Jersey, Prentice Hall. 2ª ed.

Graham A. & Walsh. (September, 2003). “Potential metallographic technique for the investigation of pipe bombings”, [en línea] en http://www.astm.org/cgi-bin/SoftCart.exe/JOURNALS/FORENSIC/PAGES/4420.htm?E+mystore.

Greaves, R. H. (1979), Metalografía microscópica práctica, Bilbao, Ed. Urmo.

Langdon, G. S.; Chung Kim Yuen S. and Nurick G. N. (January 2005) Experimental and numerical studies on the response of quadrangular stiffened plates. Part III: localised blast loading. International Journal of Impact Engineering; vol. 31, n.º 1, pp. 85-111.

Lamajeyathilagam K., & Vendhan C. P. (July, 2004) “Deformation and rupture of thin rectangular plates subjected to underwater shock”, in Internattional Journal of Impact Engineering, vol. 30, n.º6, pp. 699-719.

Meier, M. (2004) The Hall-Petch Relationship. Department of Chemical Engineering and Materials Science. University of California.

Meyers, M. A. (1994) Dynamic Behavior of Materials.

New York, Ed. John Wiley & Sons Inc.

Neely, J. (2001) Metalurgia y materiales industriales. México, Limusa.

Pochetino, A. (agosto de 2005) “Propiedades mecánicas de los materiales”[ponencia]. III Congreso Internacional de Materiales, (2005). Cartagena de Indias.

Shin,Y. S. (2004) “Ship shock modelling and simulation

for far-field underwater explosion”. Computers & Structures, vol. 82, pp. 2211-2219.

Standard Test Methods for Tension Testing of Metallic

Materials: E 8–00b. ASTM Standards in Building Codes (2000), West Conshohocken, PA, pp. 1-21

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Cómo citar

Alarcón Ahumada, J. A., Fajardo Cuadro, J., Useche Vivero, J., Cano Restrepo, C., & Ramírez Wilches, D. (2008). Caracterización mecánica y microestructural de acero naval sometido a cargas dinámicas por explosión. Ciencia Y tecnología De Buques, 1(2), 17–26. Recuperado a partir de https://shipjournal.co/index.php/sst/article/view/9

Número

Vol. 1 Núm. 2

Sección

Artículos científicos y tecnológicos

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