Experimental and numerical studies of nonlinear ultrasonic responses on plastic deformation in weld joints

Xiang Yan-Xun¹, Zhu Wu-Jun¹, Deng Ming-Xi², Xuan Fu-Zhen^{1, †,}

Amplitudes of the fundamental (A₁) and second-harmonic (A₂) in the frequency domain for simulation of dislocations with different lengths.