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Damage model for rock fragmentation and comparison of calculations with blasting experiments in granite
Early attempts at estimation of stress wave damage due to blasting by use of finite element calculations met with limited success due to numerical instabilities that prevented calculations from being carried to late times. An improved damage model allows finite element calculations which remain stable at late times. Reasonable agreement between crater profiles calculated with this model using the PRONTO finite element program and excavated crater profiles from blasting experiments in granite demonstrate a successful application of this model. Detailed instructions for use of this new damage model with the PRONTO finite element programs are included. 18 refs., 16 figs.
Damage model for rock fragmentation and comparison of calculations with blasting experiments in granite
Early attempts at estimation of stress wave damage due to blasting by use of finite element calculations met with limited success due to numerical instabilities that prevented calculations from being carried to late times. An improved damage model allows finite element calculations which remain stable at late times. Reasonable agreement between crater profiles calculated with this model using the PRONTO finite element program and excavated crater profiles from blasting experiments in granite demonstrate a successful application of this model. Detailed instructions for use of this new damage model with the PRONTO finite element programs are included. 18 refs., 16 figs.
Damage model for rock fragmentation and comparison of calculations with blasting experiments in granite
B. J. Thorne (author)
1990
52 pages
Report
No indication
English
Geology & Geophysics , Soil & Rock Mechanics , Granites , P Codes , Explosive Fracturing , Fracture Mechanics , Fragmentation , Blast Effects , Computer Calculations , Computer Program Documentation , Cracks , Damage , Finite Element Method , Rocks , Stresses , EDB/360603 , EDB/990200 , Mathematical models
Study on the damage model of rock fragmentation by blasting
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