What does this research mean for the field?

Under cyclic shear loading, the macroscopic history-dependent behavior of granular materials is primarily governed by the continuous reorganization of internal force chains and anisotropy rather than large changes in overall contact connectivity. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to analyze how granular materials behave under cyclic shear loading, focusing on grain-scale interactions and bulk response.

May 17, 2026Open Access

Multiscale Response of Granular Materials under Cyclic Shear: Packing State, Force Chains, and Stress Transmission

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Authors

PBPatricia Amanda Toledo BarriosCalifornia Institute of Technology

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Implication

Randomized trial investigates cyclic loading effects on granular materials, suggesting mechanisms for behavior prediction.

Key Points

This research aims to analyze how granular materials behave under cyclic shear loading, focusing on grain-scale interactions and bulk response.
Laboratory experiments on dry, cohesionless granular materials under quasi-static cyclic simple shear loading.
Utilization of the Granular Element Method (GEM) for estimating interparticle contact forces from grain-scale data.
Development of an upgraded shear apparatus for controlled cyclic loading with multiscale imaging and tracking methods.
Cyclic simple shear produces direction-dependent and history-dependent responses associated with packing conditions and confinement.
Densely packed assemblies show stronger initial load-bearing structures that weaken with cycling, whereas loosely packed systems exhibit progressive compaction.
Asymmetric stress and deformation responses were observed, indicating complex internal load transfer mechanisms over repeated cycles.

Cite This Study

Patricia Amanda Toledo Barrios (2026) studied this question.

synapsesocial.com/papers/6a095c2c7880e6d24efe2362 https://doi.org/10.7907/eydy-1z48

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Multiscale Response of Granular Materials under Cyclic Shear: Packing State, Force Chains, and Stress Transmission

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Key Points

Cite This Study

Multiscale Response of Granular Materials under Cyclic Shear: Packing State, Force Chains, and Stress Transmission

Discussion

Member takes

Implication

Key Points

Cite This Study

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