XFEM Simulation of blast-induced crack propagation in rocks

M. A.L. Bendezu, C. Romanel, D. M. Roehl

Resultado de la investigación: Capítulo del libro/informe/acta de congresoArticulo (Contribución a conferencia)revisión exhaustiva

1 Cita (Scopus)

Resumen

Simulation of rock blasting is a challenging task in computational mechanics given the multiphysics and multiscale nature of the phenomenon. Among the several numerical methods available to deal with this problem, the Extended Finite Element Method (XFEM) presents some advantages since it can perform arbitrary crack propagation without remeshing and elements containing a crack are not required to conform to crack edges. In this research XFEM is applied to investigate rock blasting based on the phantom node method where discontinuities in the displacement fields are introduced through new degrees of freedom in overlapping elements. Some specific aspects related to the fracturing of a rock mass subjected to a general bench blast are discussed, such as the influence of mesh refinement, the effects of the stress-loading rate and the number and distribution of preexisting cracks around the blast hole. The numerical results are compared with those obtained by other authors using different numerical approaches, which confirms the suitability of XFEM to simulate dynamic fracture propagation problems.

Idioma originalInglés
Título de la publicación alojada50th US Rock Mechanics / Geomechanics Symposium 2016
EditorialAmerican Rock Mechanics Association (ARMA)
Páginas144-151
Número de páginas8
ISBN (versión digital)9781510828025
EstadoPublicada - 1 ene 2016
Publicado de forma externa
Evento50th US Rock Mechanics / Geomechanics Symposium 2016 - Houston, Estados Unidos
Duración: 26 jun 201629 jun 2016

Serie de la publicación

Nombre50th US Rock Mechanics / Geomechanics Symposium 2016
Volumen1

Conferencia

Conferencia50th US Rock Mechanics / Geomechanics Symposium 2016
País/TerritorioEstados Unidos
CiudadHouston
Período26/06/1629/06/16

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