Acoustic Emission or Crackling Noise in Paper Fracture

摘要

Acoustic emission experiments in paper, a disordered material, give evidence for power-law probability distributions of statistical quantities as event energies or intervals. Two setups, usual mode I tensile tests and a nip-in-peel one have been studied in our work. In both cases, even using the same material, we observe "criticality". This has wide implications for theories of statistical fracture.