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Conference Proceedings

Third International Symposium on Rock Fragmentation by Blasting, Brisbane, August 1990

Conference Proceedings

Third International Symposium on Rock Fragmentation by Blasting, Brisbane, August 1990

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The Role of Rayleigh-Waves in Rock Fragmentation

During blasting body wave interaction with geometrical surfaces induces Rayleigh-waves which propagate along free surfaces, e.g. crack faces or delaminated rock layers. These Rayleigh-waves carry most of their energy within a very shallow surface layer and propagate with very little attenuation in real rock materials. Upon interaction with a crack front a very strong mixed mode stress intensity factor may result and lead to fracture initiation. On the basis of experimental photomechanical results the history of dynamic stress intensity factors Kt and K2 will be studied in Detail.
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  • Published: 1990
  • PDF Size: 0.924 Mb.
  • Unique ID: P199005061

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