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Wave propagation, damage evolution, and dynamic fracture extension. Part II. Blasting

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Abstract

Blasting and blast-induced three-dimensional dynamic fracture propagation in prestressed complex rock formations are addressed. Three-dimensional cube-type laboratory models fabricated from PMMA are dynamically loaded with explosives and the resulting contained fracture structures are studied. Highspeed photography is used to record the dynamic evolution of blast-induced fractures and the effect of stemming of the borehole and blasting under uniaxial stresses is investigated. The series of three-dimensional experiments provide not only new information on the physics and mechanics of the development of the fracture network during blasting but also serve as an input and guide for experts in numerical simulation.

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Authors
  1. H. P. Rossmanith
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  2. R. E. Knasmillner
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  3. A. Daehnke
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  4. L. Mishnaevsky Jr.
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Additional information

This contribution is dedicated to Prof. V. Panasyuk on the occasion of his 70th birthday. Part I was published in the foregoing issue.

Institute of Mechanics, Technical University, Vienna, Austria., Published in Fizyko-Khimichna Mekhanika Materialiv, Vol. 32, No. 4, pp. 23–30, July–August, 1996.

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Rossmanith, H.P., Knasmillner, R.E., Daehnke, A. et al. Wave propagation, damage evolution, and dynamic fracture extension. Part II. Blasting. Mater Sci 32, 403–410 (1996). https://doi.org/10.1007/BF02538964

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  • DOI: https://doi.org/10.1007/BF02538964

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