Related Experiment Video
Updated: Nov 21, 2025

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes
Published on: May 23, 2017
Irregular and suppressed elastic deformation by a structural twist in cellulose nanofibre models
Kojiro Uetani1, Takuya Uto2, Nozomu Suzuki3
1The Institute of Scientific and Industrial Research, Osaka University, Mihogaoka 8-1, Ibaraki-shi, Osaka, 567-0047, Japan. uetani@eco.sanken.osaka-u.ac.jp.
Abstract:
The elastic responsiveness of single cellulose nanofibres is important for advanced analysis of biological tissues and their use in sophisticated functional materials. However, the mechanical responsiveness derived from the twisted structure of cellulose nanofibres (CNFs) has remained unexplored. In this study, finite element simulations were applied to characterize the deformation response derived from the torsional structure by performing tensile and bending tests of an unconventionally very long and twisted rod model, having the known dimensional parameters and properties of CNFs. The antagonistic action of two types of structural elements (a contour twist and a curvilinear coordinate) was found to result in an irregular deformation response but with only small fluctuations. The contour twist generated rotational displacements under tensile load, but the curvilinear coordinate suppressed rotational displacement. Under bending stress, the contour twist minimized irregular bending deformation because of the orthotropic properties and made the bending stress transferability a highly linear response.
Related Concept Videos
Elastic Strain Energy for Shearing Stresses
Strain and Elastic Modulus
Members Made of Elastoplastic Material
As the bending moment...
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
Elastin is Responsible for Tissue Elasticity
Ligaments and tendons are made of dense regular connective tissue, but in ligaments not all fibers are parallel. Dense regular elastic tissue contains elastin fibers and...
Elastic Strain Energy for Normal Stresses
If...

