A CATASTROPHE ANALYSIS OF THREE -POINT BEND ROUND BEAM SPECIMENS OF ROCK
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Abstract:
The snap-back instability (also known as catastrophe behavior) .which may happen during the process of fracture testing with three-point bend round beam of rock .concrete and ceramic materials is analysed,an instability criterion for this kind of specimen is propoesd.it is different from that of the three-point bend rectangular beam.
