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The fine structure of fibers and crystalline polymers. III. Interpretation of the mechanical properties of fibers
Author(s) -
Hearle J. W. S.
Publication year - 1963
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1963.070070403
Subject(s) - spiral (railway) , materials science , fiber , fibril , extension (predicate logic) , deformation (meteorology) , composite material , spring (device) , polymer , matrix (chemical analysis) , mechanism (biology) , physics , chemistry , thermodynamics , mechanical engineering , computer science , biochemistry , programming language , quantum mechanics , engineering
The mechanics of extension of plant fibers is considered in terms of a spiral arrangement of crystalline fibrils embedded in a noncrystalline matrix. Deformation may take place either by stretching of the fibrils or by extension such as that of a spiral spring. In the latter, the major resistance comes from the reduction in volume. The extension mechanism predominates for low spiral angles; the spring mechanism, for high spiral angles. There is reasonable agreement between the theoretical expressions and experimental results. The application of similar ideas to other types of fiber structure is considered.