Additional jamming transition in 2D bidisperse granular packings
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arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866916743523336192 |
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| author | Petit, Juan C. Sperl, Matthias |
| author_facet | Petit, Juan C. Sperl, Matthias |
| contents | We present a jamming diagram for 2D bidisperse granular systems, capturing two distinct jamming transitions. The first occurs as large particles form a jammed structure, while the second, emerging at a critical small-particle concentration, $X_{\mathrm{S}}^{*} \approx 0.21$, and size ratio, $δ^{*} \approx 0.25$, involves small particles jamming into the voids of the existing large-particle structure upon further compression. Below this threshold, small particles fill voids within the large-particle network, increasing packing density. Beyond this point, excess small particles disrupt efficient packing, resulting in looser structures. \jp{These results, consistent with previous 3D studies, demonstrate that the second transition occurs at a well-defined point in the $(X_{\mathrm{S}}, δ)$ plane, independent of dimensionality, likely driven by the geometric saturation of available space around particles, void closure, and structural arrangement. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_17266 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Additional jamming transition in 2D bidisperse granular packings Petit, Juan C. Sperl, Matthias Soft Condensed Matter Disordered Systems and Neural Networks Statistical Mechanics We present a jamming diagram for 2D bidisperse granular systems, capturing two distinct jamming transitions. The first occurs as large particles form a jammed structure, while the second, emerging at a critical small-particle concentration, $X_{\mathrm{S}}^{*} \approx 0.21$, and size ratio, $δ^{*} \approx 0.25$, involves small particles jamming into the voids of the existing large-particle structure upon further compression. Below this threshold, small particles fill voids within the large-particle network, increasing packing density. Beyond this point, excess small particles disrupt efficient packing, resulting in looser structures. \jp{These results, consistent with previous 3D studies, demonstrate that the second transition occurs at a well-defined point in the $(X_{\mathrm{S}}, δ)$ plane, independent of dimensionality, likely driven by the geometric saturation of available space around particles, void closure, and structural arrangement. |
| title | Additional jamming transition in 2D bidisperse granular packings |
| topic | Soft Condensed Matter Disordered Systems and Neural Networks Statistical Mechanics |
| url | https://arxiv.org/abs/2502.17266 |