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Experimental Investigation on Pure-Shear Ratcheting Behavior of Double-Network Tough Hydrogels
Xuelian Zhang1, Junjie Liu1,*, Jian Li2, Zhihong Liang1, Han Jiang1, Guozheng Kang1, Qianhua Kan1,*
1 Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Aerospace
Engineering, Southwest Jiaotong University, Chengdu, 611756, China
2 Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang, 621999, China
* Corresponding Authors: Junjie Liu, Qianhua Kan. Email: ,
The International Conference on Computational & Experimental Engineering and Sciences 2023, 25(3), 1-1. https://doi.org/10.32604/icces.2023.010142
Abstract
The last decades have witnessed the real and huge potential applications of hydrogels in various areas,
including biomedicine, soft robotics, and flexible electronics. The fatigue of hydrogels challenges their
reliability and longevity in service, but the related works are not sufficient. In this work, stress-controlled
cyclic fatigue tests of a double-network tough hydrogel, consisting of polyacrylamide and alginate polymer
networks, under pure shear deformation are investigated. The effects of peak stress, loading rate, peak
stress holding time, and environmental relative humidity on the fatigue of the double-network tough
hydrogel are considered. The results show that with the increase in peak stress, relative humidity, and peak
stress holding time, the peak, valley and ratcheting stretch increase and the apparent modulus decreases.
However, with the increase in stress rate, the peak, valley and ratcheting stretch decrease and the apparent
modulus increases. The ratcheting stretch increases and then decreases with the increasing loading cycles,
while the apparent modulus first decreases and then increases with the increasing loading cycles. These
experimental results were interpreted qualitatively by the competition between the unzipping of ionic
bonds and water loss of the hydrogels during the fatigue test. This work reveals the ratcheting behavior of
double-network tough hydrogels and might inspire studies on the fatigue of other tough hydrogels.
Keywords
Cite This Article
APA Style
Zhang, X., Liu, J., Li, J., Liang, Z., Jiang, H. et al. (2023). Experimental investigation on pure-shear ratcheting behavior of double-network tough hydrogels. The International Conference on Computational & Experimental Engineering and Sciences, 25(3), 1-1. https://doi.org/10.32604/icces.2023.010142
Vancouver Style
Zhang X, Liu J, Li J, Liang Z, Jiang H, Kang G, et al. Experimental investigation on pure-shear ratcheting behavior of double-network tough hydrogels. Int Conf Comput Exp Eng Sciences . 2023;25(3):1-1 https://doi.org/10.32604/icces.2023.010142
IEEE Style
X. Zhang et al., "Experimental Investigation on Pure-Shear Ratcheting Behavior of Double-Network Tough Hydrogels," Int. Conf. Comput. Exp. Eng. Sciences , vol. 25, no. 3, pp. 1-1. 2023. https://doi.org/10.32604/icces.2023.010142