April 20, 2024Open Access

3D characterization of kinematic fields and poroelastic swelling near the tip of a propagating crack in a hydrogel

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Rotation exceeds 30° along crack wakes during fracture propagation in polyacrylamide hydrogels, demonstrating substantial geometric nonlinearity and multi-axial stretching.
A hybrid method of digital image correlation and particle tracking successfully retrieves three-dimensional displacement, rotation, and kinematic fields around the crack tip.
Supports future fracture mechanics theory by revealing how poroelastic swelling and solvent migration alter near-tip stress states under severe multi-axial mechanical loading.

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Implication

Experimental analysis reveals multi-axial stretch and poroelastic swelling at propagating crack tips in hydrogels, highlighting geometric nonlinearity during soft material fracture.

Cite This Study

Li et al. (2024) studied this question.

synapsesocial.com/papers/68e6e511b6db643587660f83 https://doi.org/10.48550/arxiv.2404.13331

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Implication

Experimental analysis reveals multi-axial stretch and poroelastic swelling at propagating crack tips in hydrogels, highlighting geometric nonlinearity during soft material fracture.

3D characterization of kinematic fields and poroelastic swelling near the tip of a propagating crack in a hydrogel

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Cite This Study

3D characterization of kinematic fields and poroelastic swelling near the tip of a propagating crack in a hydrogel

Key Points

Discussion

Implication

Cite This Study

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