1. A system for structural health monitoring comprising: an automatic signal collection unit; an array of sensors; an oscilloscope; a function generator; an impedance analyzer; and a computer, wherein the computer is programmed to perform structural health monitoring analysis based on user selectable data wherein the structural health monitoring analysis programming utilizes RMSD = ∑ N ⁢ ⁢ [ Re ⁡ ( S i ) - Re ⁡ ( S i 0 ) ] 2 ∑ N ⁢ ⁢ [ Re ⁡ ( S i 0 ) ] 2 to perform a damage index analysis.