Paper
Structural aging of a cohesive and amorphous granular solid under cyclic loading
Authors
William Hobson-Rhoades, Douglas J Durian, Yue Fan, Hongyi Xiao
Abstract
We investigate how cyclic loading evolves the structure and deformation behaviors of a granular raft composed of particles floating at an air-oil interface. The raft has a disordered particle packing structure, and is cohesive due to capillary interactions between particles. Under uniaxial cyclic loading with a small strain amplitude, the raft's packing structure experiences an aging process characterized by logarithmically increasing packing fraction and decreasing structural heterogeneity. The observed structural change is due to particle dynamics that are organized around morphologically evolving voids in the raft. The raft is then subjected to quasi-static tension or compression tests until failure. In comparison with non-aged rafts, the rafts that experienced cyclic loading show a higher strength, higher stiffness, and lower ductility, along with qualitatively different features, such as a stress overshoot in the loading curve.
Metadata
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Raw Data (Debug)
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"raw_xml": "<entry>\n <id>http://arxiv.org/abs/2603.07852v1</id>\n <title>Structural aging of a cohesive and amorphous granular solid under cyclic loading</title>\n <updated>2026-03-09T00:01:33Z</updated>\n <link href='https://arxiv.org/abs/2603.07852v1' rel='alternate' type='text/html'/>\n <link href='https://arxiv.org/pdf/2603.07852v1' rel='related' title='pdf' type='application/pdf'/>\n <summary>We investigate how cyclic loading evolves the structure and deformation behaviors of a granular raft composed of particles floating at an air-oil interface. The raft has a disordered particle packing structure, and is cohesive due to capillary interactions between particles. Under uniaxial cyclic loading with a small strain amplitude, the raft's packing structure experiences an aging process characterized by logarithmically increasing packing fraction and decreasing structural heterogeneity. The observed structural change is due to particle dynamics that are organized around morphologically evolving voids in the raft. The raft is then subjected to quasi-static tension or compression tests until failure. In comparison with non-aged rafts, the rafts that experienced cyclic loading show a higher strength, higher stiffness, and lower ductility, along with qualitatively different features, such as a stress overshoot in the loading curve.</summary>\n <category scheme='http://arxiv.org/schemas/atom' term='cond-mat.soft'/>\n <published>2026-03-09T00:01:33Z</published>\n <arxiv:primary_category term='cond-mat.soft'/>\n <author>\n <name>William Hobson-Rhoades</name>\n </author>\n <author>\n <name>Douglas J Durian</name>\n </author>\n <author>\n <name>Yue Fan</name>\n </author>\n <author>\n <name>Hongyi Xiao</name>\n </author>\n </entry>"
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