Feasibility of Residual Stress Nondestructive Estimation Using the Nonlinear Property of Critical Refraction Longitudinal Wave

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/amse/volume-2017/6274054/figures/6274054.fig.004a.svgz" name="6274054.fig.004a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>The time domain of receiving signals in nonlinear ultrasonic experiment</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/amse/volume-2017/6274054/figures/6274054.fig.004b.svgz" name="6274054.fig.004b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>The frequency spectrum of receiving signals in nonlinear ultrasonic experiment</td></tr></table>

Advances in Materials Science and Engineering

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Figure 4

Figure 4: Feasibility of Residual Stress Nondestructive Estimation Using the Nonlinear Property of Critical Refraction Longitudinal Wave 