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Exploring the theoretical foundation with rupture and delayed rupture experiments

Authors

• Shi-Qing Wang, The University of AkronFollow
• Junpeng Wang, The University of Akron
• Asal Y. Siavoshani, The University of Akron
• Cheng Liang, The University of Akron

Author 1 OrcID

https://orcid.org/0000-0002-0572-7108

Author 2 OrcID

https://orcid.org/0000-0002-4503-5026

Author 3 OrcID

https://orcid.org/0000-0003-3658-6827

Academic department

School of Polymer Science and Polymer Engineering

Description

We carry out uniaxial continuous and step stretching of various cross-linked polymer networks to demonstrate how characteristics of rupture during continuous stretching and delayed rupture after step stretching can be used to probe the structure of the emergent kinetic activation theory of bond dissociation (KATBD) for elastomeric failure. Based on delayed rupture experiments, we show that the network lifetime tntw, taken as the incubation time tdel-rupt for delayed rupture, depends on temperature in an Arrhenius like manner and is exponentially sensitive to the degree of network stretching (depicted by the step-stretch ratio λss). Rupture at λb during continuous stretching for a wide range of stretch rates takes place on time scales inversely proportional to the stretch rate. The elapsed time trupt at rupture is found to be comparable to tdel-rupt at various values of λb = λss in a wide range of temperature, affording the experimental basis for the premise of the KATBD. Having identified the hidden internal clock tntw, continuous stretching tests at different temperatures are performed to show the existence of a new time temperature equivalence (TTE): fast stretching at higher temperatures is equivalent to slow stretching at lower temperatures: different pairs of rate and temperature can produce the rupture at the same tensile strength and strain.

Publisher name

ACS Publications

Grant Information

N/A

Data Management

N/A

Document Type

Article

Digital Object Identifier (DOI) Link

https://doi.org/10.1021/acs.macromol.5c03203

Publication Date

2-18-2026

Publication Title

Macromolecules

Volume

59

Issue

5

First Page

2885

Last Page

2893

Recommended Citation

Wang, Shi-Qing; Wang, Junpeng; Siavoshani, Asal Y.; and Liang, Cheng, "Exploring the theoretical foundation with rupture and delayed rupture experiments" (2026). University Research. 40.
https://ideaexchange.uakron.edu/university_research/40

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.