Based on the scattering cancellation technique, a piezoelectric cloaking is designed, which can make the piezomagnetic cylinder invisible to transient elastic waves. Following the Laplace transform, the piezoelectric cloaking mechanism is presented and dynamic stress concentration factor (DSCF) is derived by the plane wave expansion method. The numerical method of the inverse Laplace transformation is used to show the cloaking behavior that besides the invisible phenomenon, the DSCF is also reduced by the cloak. The piezoelectric parameter plays a positive role on enhancing the object invisibility and improving the stress distribution. These results can offer the fundamental design and application of elastic wave metamaterials.

基于散射抵消技术，设计了一种压电隐身，使压电圆柱体对瞬态弹性波不可见。在拉普拉斯变换之后，提出了压电隐身机制，并通过平面波展开法推导出动态应力集中因子（DSCF）。用拉普拉斯逆变换的数值方法来展示隐形行为，除了隐形现象外，DSCF 也被隐形减少了。压电参数对增强物体不可见性和改善应力分布具有积极作用。这些结果可以为弹性波超材料的基本设计和应用提供依据。