

FOLLOWUS
a.Center for Advanced Material Diagnostic Technology, Shenzhen Technology University, Shenzhen 518118, China
b.Laboratoire de Physique des Solides, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay 91400, France
shixiang@sztu.edu.cn
Received:26 May 2024,
Revised:2024-06-11,
Accepted:04 July 2024,
Online First:10 October 2024,
Published:01 December 2024
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Shi, X. Tensile-WAXD apparatus: an improved and accurate system for the in situ study of extension-induced segmental orientation in highly stretched elastomer. Chinese J. Polym. Sci. 2024, 42, 2002–2010
Xiang Shi. Tensile-WAXD Apparatus: An Improved and Accurate System for the
Shi, X. Tensile-WAXD apparatus: an improved and accurate system for the in situ study of extension-induced segmental orientation in highly stretched elastomer. Chinese J. Polym. Sci. 2024, 42, 2002–2010 DOI: 10.1007/s10118-024-3201-x.
Xiang Shi. Tensile-WAXD Apparatus: An Improved and Accurate System for the
By utilizing mortise-like clamping jaws and dogbone-shaped specimens
an improved X-ray apparatus that combines tensile testing and X-ray diffraction has been designed and constructed to investigate the “stress-deformation-segmental orientation” relationship in elastomers with high extensibilities. Due to the minimization of experimental errors from sample slippage or premature fracture
this setup allows for the simultaneous recording of high-quality mechanical responses and 2D diffraction patterns. Furthermore
the local extension ratio can be accurately determined based on thickness variation
and the Hermans' orientation function was demonstrated to be a reliable method with high accuracy to calculate the segmental orientation parameter ⟨
P
2
⟩ in elastomeric samples under high degree of stretching.
An improved X-ray apparatus that combines tensile testing and X-ray diffraction has been designed and constructed to conduct time-resolved experiments during uniaxial stretching. By utilizing mortise-like clamping jaws and dogbone-shaped specimens
this setup allows for the simultaneous recording of high-quality mechanical responses and 2D diffraction patterns due to the minimization of experimental errors from sample slippage or premature fracture. Furthermore
the local extension ratio can be accurately determined based on thickness variation
and the Hermans' orientation function was demonstrated to be a reliable method with high accuracy to calculate the segmental orientation parameter
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in elastomeric samples under high degree of stretching. In summary
this innovative tensile-WAXD instrument has proven to be a promising and powerful technique for investigating the “stress-deformation-segmental orientation” relationship in elastomers with high extensibilities.
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