Cracks in rubber under tension exceed the shear wave speed

Details Cracks in rubber under tension exceed the shear wave speed Cracks in rubber under tension exceed the shear wave speed

2003-11-18

arxiv.org/abs/cond-mat/0311422v2

Physics

Condensed Matter

Materials Science

4 pages, 5 eps figures

Scientific paper

10.1103/PhysRevLett.93.015504

The shear wave speed is an upper limit for the speed of cracks loaded in tension in linear elastic solids. We have discovered that in a non-linear material, cracks in tension (Mode I) exceed this sound speed, and travel in an intersonic range between shear and longitudinal wave speeds. The experiments are conducted in highly stretched sheets of rubber; intersonic cracks can be produced simply by popping a balloon.

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