Controlling acoustic-wave propagation through material anisotropy

Stress-wave energy management through material anisotropy

“…Five of the six eigenvalues of the elasticity tensor vanish in PM and therefore it can be strained in 5 independent modes without producing any stress which causes instability in the material [6,10]. Tehranian et al [11] found that it is possible to design the microstructure of a material to attain an elasticity tensor which varies smoothly with position; and can be used to guide the energy of stress waves.…”