Spectral Characteristics of Acoustic Emission in Carbon Fiber-Reinforced Composite Materials Subjected to Cyclic Loading

<div>An example of a smoothed spectrogram for a sample of the first group of the “A” series with superposition of the <i>σ</i>(<i>N</i>) dependence (Roman numerals indicate the numbers of the loading cycles).</div>

Advances in Materials Science and Engineering

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Figure 4

Figure 4: Spectral Characteristics of Acoustic Emission in Carbon Fiber-Reinforced Composite Materials Subjected to Cyclic Loading 