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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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://shipjournalco.biteca.online/index.php/sst/article/view/9

Evento

Vol. 1 Núm. 2

Sección

Artículos científicos y tecnológicos

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