A composite material has plate 4 having holes and a bonded to a first member to form an intermediate layer, and a second member which is made of a material different from the first member 1 laminated onto the intermediate layer 2 while charging a portion of the second member 5 into the holes 3 of the intermediate layer 5 to form a composite material 6. Tensors are formed using the propagation-style measurements and one or more quantities are computed using the tensors. The electronic representation can be output to a output device, such as a printer, memory storage device, data network, or the Internet.