Análisis de la fractura de rocas entalladas bajo diferentes condiciones de carga y de temperatura mediante criterios locales

• Autores: Jon Justo Urrutia
• Directores de la Tesis: Jorge Castro González (dir. tes.), César Sagaseta Millán (codir. tes.)
• Lectura: En la Universidad de Cantabria ( España ) en 2020
• Idioma: español
• Tribunal Calificador de la Tesis: Rafael Jiménez Rodríguez (presid.), Almudena da Costa García (secret.), Javad Razavi (voc.)
• Programa de doctorado: Programa de Doctorado en Ingeniería Civil por la Universidad de Cantabria
• Materias:
  • Física
    • Termodinámica
      • Altas temperaturas
  • Ciencias de la tierra y del espacio
    • Geología
      • Mecánica de rocas
  • Ciencias tecnológicas
    • Tecnología de materiales
      • Propiedades de materiales
      • Resistencia de materiales
• Enlaces
  • Tesis en acceso abierto en:  TESEO  UCrea 
• Resumen

  • This PhD thesis might be of interest in those fields concerned with rock fracture mechanics, such as civil engineering, mining engineering or energy engineering, for example. This work aims to respond to the general demand for specific tools and methodologies for the assessment of rock fracture of notched components, leaving aside the over-conservative application of ordinary fracture mechanics that have been traditionally used to deal with this problem.

    In particular, the applicability of the Theory of Critical Distances (TCD) and the Strain Energy Density (SED) criterion in the field of rock mechanics is studied here, highlighting their advantages and limitations in rock-type materials. To do so, the focus is placed on the fracture behaviour of six rocks with different lithologies, under the presence of U-notch type defects with different radii and under different loading (mode I and mixed mode I+II) and temperature conditions up to 250ºC, which is a common temperature range in geothermal applications, for example.