Compression and Packing Density of Fibrous Assemblies

This paper presents a generalization of the unidimensional deformation equation based on the van Wyk theory. The derivation considers the effect of uncompressed areas between contacting fibers. Theoretical results are verified by the experimental work of Baljasov. The solution is extended to cover bidimensional deformation of an oriented fibrous assembly. The work also proves the importance of using fiber packing density as the argument in the compression equation.