Juan C. Petit
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View article: Vibrational similarities in jamming-unjamming of polycrystalline and disordered granular packings
Vibrational similarities in jamming-unjamming of polycrystalline and disordered granular packings Open
We investigate the vibrational properties of polycrystalline monodisperse and disordered bidisperse granular packings during jamming and unjamming using discrete element method simulations. Both systems deviate from Debye scaling at low fr…
View article: Pressure model and scaling laws in jammed bidisperse granular packings
Pressure model and scaling laws in jammed bidisperse granular packings Open
This investigation delves into the scaling laws governing pressure and key mean variables throughout the first and second jamming transitions previously observed in asymmetric bidisperse granular packings. Motivated by a theoretical model …
View article: Pressure model and scaling laws in jammed bidisperse granular packings
Pressure model and scaling laws in jammed bidisperse granular packings Open
This investigation delves into the scaling laws governing pressure and key mean variables throughout the first and second jamming transitions previously observed in asymmetric bidisperse granular packings. Motivated by a theoretical model …
View article: Structural transitions in jammed asymmetric bidisperse granular packings
Structural transitions in jammed asymmetric bidisperse granular packings Open
We study the local structural changes along the jamming transitions in asymmetric bidisperse granular packings. The local structure of the packing is assessed by the contact orientational order, $$\tilde{Q}_{\ell }$$ , that quantifie…
View article: Bulk modulus along jamming transition lines of bidisperse granular packings
Bulk modulus along jamming transition lines of bidisperse granular packings Open
We present three-dimensional discrete element method simulations of bidisperse granular packings to investigate their jamming densities ϕ_{J} and dimensionless bulk moduli K as functions of the size ratio δ and the concentration of small p…
View article: Structural transitions in jammed asymmetric bidisperse granular packings
Structural transitions in jammed asymmetric bidisperse granular packings Open
We study the local structural changes along the jamming transitions in asymmetric bidisperse granu\-lar packings. The local structure of the packing is assessed by the contact orientational order, $\tilde{Q}_{\ell}$, that quantifies the co…
View article: Bulk Modulus along Jamming Transition Lines of Bidisperse Granular Packings
Bulk Modulus along Jamming Transition Lines of Bidisperse Granular Packings Open
We present 3D DEM simulations of bidisperse granular packings to investigate their jamming densities, $ϕ_J$, and dimensionless bulk moduli, $K$, as a function of the size ratio, $δ$, and the concentration of small particles, $X_{\mathrm S}…
View article: Additional Transition Line in Jammed Asymmetric Bidisperse Granular Packings
Additional Transition Line in Jammed Asymmetric Bidisperse Granular Packings Open
We present numerical evidence for an additional discontinuous transition, upon compression, inside the jammed regime for an asymmetric bidisperse granular packing. This additional transition line separates jammed states with networks of pr…
View article: Reduction of the bulk modulus with polydispersity in noncohesive granular solids
Reduction of the bulk modulus with polydispersity in noncohesive granular solids Open
We study the effect of grain polydispersity on the bulk modulus in noncohesive two-dimensional granular solids. Molecular dynamics simulations in two dimensions are used to describe polydisperse samples that reach a stationary limit after …
View article: Polydispersity and force networks in non-cohesive granular solids
Polydispersity and force networks in non-cohesive granular solids Open
We study the effect of grain polydispersity on the bulk modulus in non-cohesive two dimensional granular solids. Molecular dynamics simulations in two dimensions are used to describe polydisperse samples that reach a stationary limit after…
View article: Contact angle entropy and macroscopic friction in noncohesive two-dimensional granular packings
Contact angle entropy and macroscopic friction in noncohesive two-dimensional granular packings Open
We study the relationship between the granular contact angle distribution and local particle friction on the macroscopic friction and bulk modulus in noncohesive disk packings. Molecular dynamics in two dimensions are used to simulate unia…
View article: Contact angle entropy and macroscopic friction in non-cohesive granular packings
Contact angle entropy and macroscopic friction in non-cohesive granular packings Open
We study the relationship between the granular contact angle distribution and local particle friction on the macroscopic friction and bulk modulus in non-cohesive granular packings. Particle dynamics in two dimensions are used to simulate …