SHERP

Large Deflection Analysis of Fibers with Nonlinear Elastic Properties

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Authors
JUNG, JAE HO; KANG, TAE JIN
Issue Date
2005-10-01
Publisher
SAGE Publications
Citation
Textile Res. J. 75(10), 715-723
Abstract
This paper probides useful insights into the nonlinear buckling phenomenon of fibrous materials. In the analysis, a fiver is considered to be a rectangular, prismatic, inextensible column ludwick type. Governing equations of the bukling of a fiber as a nonlinear situation of the column but also three other loading conditions: a horizontal direction of point load and a vertical direcction of the distributed load, a vertical direction of point load and horizontal direction of distributed load, and a vertical direction of both point and distributed loads. As a result, in a linear material, the shape of the deflected fiber is fully described by the geometric boundary conditions of the path. In a nonlinear material, however, the shape depends on many other factor, including the cross-section, stress-strain response, and loading. Moreover, the deflected shape of a fiber with specified angles at both ends is almost the same for point of combined loading, regardless of the choice of constitutive relationship. What makes difference between the choices of constitutive equations is the load level. In a nonlinear fiber, the same deflected shape can be achieved at different load levels from the linear case. Another distinctive feature in nonlinear fiber is that the solution has double roots of the load parameter B at the same value of tip slop angle, whereas it has only one root for the linear case. Finally, the accuracy of the solution is estimated by comparing the results with well-known elliptic integral solutions for a linear elastic case under point load. Selected examples of the deflected shape are also provided.
ISSN
0040-5175
Language
English
URI
http://hdl.handle.net/10371/12418
DOI
https://doi.org/10.1177/0040517505055374
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Material Science and Engineering (재료공학부) Journal Papers (저널논문_재료공학부)
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