Relaxation dynamics of vibrated dense granular media: Hysteresis and nonlocal effects

Gao, Hong; Zhou, Yanzhi; Li, Jian

doi:10.1016/j.powtec.2022.117847

Cited by 5 publications

(2 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Particulate matter is widely present in both the natural environment and engineering applications [1,2]. The ability to undergo body-deformation that generate appropriate reaction forces from the granular medium is critical for the survival of most organisms and constitutes a vital skill for robots employed in various fields, including rescue [3,4], the underground exploration [4][5][6], and the control of rheological responses [7][8][9]. These organisms or structures can be regarded as being composed of fundamental units akin to simply supported beams in the field of mechanics [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…To bridge this gap, quantifying the heterogeneity of granular materials is crucial. Non-equilibrium statistical mechanics methods [12,24,28,48], such as self-overlap order parameter and dynamical susceptibility, can analyze spatial correlations, especially for granular flows under small vibrations [49]. Therefore, this paper aims to delve further into these unresolved questions: What nonlinear phenomena arise in the yielding process of granular materials induced by the intruder's vibrations?…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Yielding and Rheology of vibrated beam-driven granular matter: Hysteresis and Memory

Hong,

Li,

zheng

et al. 2024

Preprint

Self Cite

View full text Add to dashboard Cite

Dense granular matter has attracted significant attention due to its intricate yielding and rheological phenomena. However, unlike sheared or shaken granular systems where energy is injected at the boundaries, the yielding transition induced by vibrated beams has been rarely explored, despite its immense applications in animal and robotic locomotion on sand and underground structural engineering. In this study, we systematically vary the frequency and amplitude of beam vibration to experimentally and computationally investigate the relaxation dynamics of the granular medium. Evidence of ductile yielding behaviors with hysteresis in the frequency domain is presented. Consistency in the dynamic behaviors of both the beam and granular materials has been demonstrated. Through an analysis of mesostructural evolution, including particle motion and mechanical stability, we reveal that the hysteresis originates from anomalous diffusion induced by memory effects. A nonmonotonic constitutive law is proposed through the qualification of memory effects. This study offers insights for theoretical models of vibrated beam-driven flow, emphasizing the distinctive frequency-dependent properties through the bidirectional coupling of elastomer and granular matter.

show abstract