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論文資訊
- 類型：已發表論文
- 日期：2020-03-01
摘要
In this paper we present experimental results concerning Acoustic Emission (AE) recorded during cyclic compression tests on two different kinds of brittle building materials, namely concrete and basalt. The AE inter-event times were investigated through a non-extensive 統計 mechanics analysis which shows that their complementary cumulative probability distributions follow q-exponential laws. The entropic index q and the relaxation parameter beta(q) equivalent to 1/T-q, obtained by fitting the experimental data, exhibit systematic changes during the various stages of the failure process, namely (q, T-q) linearly align. The T-q = 0 point corresponds to the macroscopic breakdown of the material. The slope, including its sign, of the linear alignment appears to depend on the chemical and mechani
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