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. 2021 May;9(10):880. doi: 10.21037/atm-21-2073

Figure 2.

Figure 2

Finite element analysis of the piezoelectric energy harvester unit with and without a metal layer. (A) Results of finite element analysis for stress distribution and the corresponding output voltage of the piezoelectric energy harvester unit without a beryllium-copper layer. (B) Results of finite element analysis for stress distribution and the corresponding output voltage of the piezoelectric energy harvester unit with a beryllium-copper layer under the same vertex deformation of 1.54 mm.