Measurement of soil deformations in vane shear tests on low strength clays

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Experimental analysis reveals strain rate effects on soil strength in low strength clays, indicating implications for seabed infrastructure.

Soil deformations were measured in vane shear tests, showing distinct behaviors at varying strain rates.
Tests indicated that narrower deformation widths at lower rotational velocities are linked to drainage and strain rate effects.
Using image-based deformation measurement techniques revealed a diffuse deformation zone before peak shear stress mobilization.
Findings highlight the importance of understanding strain localization to improve soil strength assessments for submarine impacts.

Qi et al. (2025) studied this question.

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Experimental analysis reveals strain rate effects on soil strength in low strength clays, indicating implications for seabed infrastructure.