抄録
It is shown that the total fiber length in anisotropic fiber assemblies can be determined by stereological procedures. The main result obtained is the equation:
where Λ is the total fiber length per unit volume of the assembly and v(_??_, Φ) is the number of crossings of the fibers and a secant plane of unit area whose normal is in the direction of (_??_, Φ).
It is also shown that the reduced forms of the equation into two special assemblies are identical to the corresponding equations previously proposed by Saltykov.