4. Finite-Element-Method-Based Validation 4.1. Evaluation Setting In terms of dimensions, both dark and light gray beams are 10 mm in length. Additionally, the piezoelectric defect is 30 mm in length. One piezoelectric element is 0.25 mm in height, while the remaining beams have a height of 1 mm. Aligning with the Euler–Bernoulli beam theory from a structural perspective, each piezoelectric defect maintains a slenderness ratio of 20, whereas the remaining beams uphold a slenderness ratio of 10.
