Reflection and Transmission Phenomena in Poroelastic Plate Sandwiched between Fluid Half Space and Porous Piezoelectric Half Space

Box 1

Elastic constants, piezoelectric constants, and dielectric constants of PZT crystal.

𝑐₁₁=148.0𝑒9, 𝑐₁₂=76.2𝑒9, 𝑐₁₃=74.2𝑒9, 𝑐₃₃=131.0𝑒9, 𝑐₄₄=25.3𝑒9, 𝑚₁₁=8.8𝑒9,

𝑚₃₃=5.2𝑒9, 𝑅=20𝑒9, 𝑒₁₅=9.3, 𝑒₃₁=−2.324, 𝑒₃₃=10.99, 𝜁₁₅=2.72, 𝜁₃₁=−0.48,

𝜁₃₃=5.32, 𝑒^∗₃=−3.6, 𝜁̃₃=−7.5, 𝜉₁₁=3.984𝑒−9, 𝜉₃₃=2.081𝑒−9, 𝜉^∗₁₁=11.8𝑒−9,

𝜉^∗₃₃=13.9𝑒−9, 𝐴₁₁=12.8𝑒−9, 𝐴₃₃=15.1𝑒−9, 𝑓=0.2, 𝑐_𝑓 (m/s) = 1500,

𝜌 (kg/m³) = 7700, 𝜌₁₁=0.66×7700, 𝜌₁₂=−0.15×7700, 𝜌₂₂=0.66×7700.