Methodological Challenges in Accounting for Test\ Conditions When Determining the Static Elastic Modulus of Advanced Aramid Structural Fibers

To develop and implement reinforcing fibers of small diameter (less than 15 μm) and an elastic modulus exceeding 50 GPa, it is necessary to determine their mechanical properties. However, most of the conventional methods are challenging to apply to such objects due to the scale effect of the gauge l...

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Bibliographic Details
Published in:Fibre chemistry 2024, Vol.55 (5), p.328-333
Main Authors: Mikheev, P. V., Mostovoy, T. E., Stepashkin, A. A., Gevorkova, A. V., Hussom, M.
Format: Article
Language:English
Subjects:
Aramid fibers
Chemistry
Chemistry and Materials Science
Diameters
Materials Science
Mechanical properties
Model testing
Modulus of elasticity
Movement
Organic Chemistry
Polymer Sciences
Reinforcing fibers
Scale effect
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Summary:To develop and implement reinforcing fibers of small diameter (less than 15 μm) and an elastic modulus exceeding 50 GPa, it is necessary to determine their mechanical properties. However, most of the conventional methods are challenging to apply to such objects due to the scale effect of the gauge length (distance between grips) on the static modulus when measuring fiber deformation by moving the grips (crosshead movement). This paper examines several advanced high-modulus fibers, including Twaron and Armos, along with introducing a model for calculating real modulus from measured values. To validate the model, experimental tests were carried out for several aramid fibers.
ISSN:0015-0541
1573-8493
DOI:10.1007/s10692-024-10485-3