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arXiv · 2410.15380

The single edge notch fracture test for viscoelastic elastomers

Farhad Kamarei·Fabio Sozio·Oscar Lopez-Pamies
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Abstract

Making use of the Griffith criticality condition recently introduced by Shrimali and Lopez-Pamies (Extreme Mechanics Letters 58: 101944, 2023), this work presents a comprehensive analysis of the single edge notch fracture test for viscoelastic elastomers. The results -- comprised of a combination of a parametric study and direct comparisons with experiments -- reveal how the non-Gaussian elasticity, the nonlinear viscosity, and the intrinsic fracture energy of elastomers interact and govern when fracture nucleates from the pre-existing crack in these tests. The results also serve to quantify the limitations of existing analyses, wherein viscous effects and the actual geometries of the pre-existing cracks and the specimens are neglected.

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Farhad Kamarei, Fabio Sozio, Oscar Lopez-Pamies. 2024-10-20. The single edge notch fracture test for viscoelastic elastomers. https://doi.org/10.46298/jtcam.16652

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