67 citations · 172 across the 14 of their papers we have counts for
14 papers
Time integrator based on rescaled Rodrigues parameters
Caroline Baker, Marcial Gonzalez
We develop an explicit, second-order, variational time integrator for full body dynamics that preserves the momenta of the continuous dynamics, such as linear and angular momenta,…
Loading-unloading contact law for micro-crystalline cellulose particles under large deformations
Yasasvi Bommireddy, Ankit Agarwal, Vikas Yettella +2
A semi-empirical mechanistic contact law for micro-crystalline cellulose (Avicel PH-200) particles is proposed and characterized experimentally using force-displacement curves obta…
Modeling granular material segregation using a combined finite element method and advection-diffusion-segregation equation model
Yu Liu, Marcial Gonzalez, Carl Wassgren
A two-dimensional, transient, multi-scale modeling approach is presented for predicting the magnitude and rate of percolation segregation for binary mixtures of granular material i…
Contact radius and curvature corrections to the nonlocal contact formulation accounting for multi-particle interactions in elastic confined granular systems
Ankit Agarwal, Marcial Gonzalez
We present contact radius and curvature corrections to the nonlocal contact formulation that take into account multi-particle interactions in elastic confined granular systems. The…
Generalized loading-unloading contact laws for elasto-plastic spheres with bonding strength
Marcial Gonzalez
We present generalized loading-unloading contact laws for elasto-plastic spheres with bonding strength. The proposed mechanistic contact laws are continuous at the onset of unloadi…
Connecting discrete particle mechanics to continuum granular micromechanics: Anisotropic continuum properties under compaction
Payam Poorsolhjouy, Marcial Gonzalez
A systematic and mechanistic connection between granular materials' macroscopic and grain level behaviors is developed for monodisperse systems of spherical elastic particles under…
Statistical characterization of microstructure evolution during compaction of granular systems composed of spheres with hardening plastic behavior
Marcial Gonzalez, Payam Poorsolhjouy, Alexander Thomas +2
An extensive numerical campaign of particle mechanics calculations that predict microstructure formation and evolution during die compaction, up to relative densities close to one,…
Quantification of lubrication and particle size distribution effects on tensile strength and stiffness of tablets
Sonia M. Razavi, Marcial Gonzalez, Alberto M. Cuitiño
We adopt a Quality by Design (QbD) paradigm to better control the mechanical properties of tablets. To this end, the effect of particle size distribution, lubricant concentration,…
Modeling granular material blending in a rotating drum using a finite element method and advection-diffusion equation multi-scale model
Yu Liu, Marcial Gonzalez, Carl Wassgren
A multi-scale model is presented for predicting the magnitude and rate of powder blending in a rotating drum blender. The model combines particle diffusion coefficient correlations…
Gaussian processes with built-in dimensionality reduction: Applications in high-dimensional uncertainty propagation
Ilias Bilionis, Rohit Tripathy, Marcial Gonzalez
The prohibitive cost of performing Uncertainty Quantification (UQ) tasks with a very large number of input parameters can be addressed, if the response exhibits some special struct…
Microstructure evolution of compressible granular systems under large deformations
Marcial Gonzalez, Alberto M. Cuitino
We report three-dimensional particle mechanics static calculations that predict the microstructure evolution during die-compaction of elastic spherical particles up to relative den…
General and mechanistic optimal relationships for tensile strength of doubly convex tablets under diametrical compression
Sonia M. Razavi, Marcial Gonzalez, Alberto M. Cuitino
We propose a general framework for determining optimal relationships for tensile strength of doubly convex tablets under diametrical compression. This approach is based on the obse…
Mesoscopic approach to granular crystal dynamics
Marcial Gonzalez, Jinkyu Yang, Chiara Daraio +1
We present a mesoscopic approach to granular crystal dynamics, which comprises a three-dimensional finite-element model and a one-dimensional regularized contact model. The approac…
A nonlocal contact formulation for confined granular systems
Marcial Gonzalez, Alberto Cuitino
We present a nonlocal formulation of contact mechanics that accounts for the interplay of deformations due to multiple contact forces acting on a single particle. The analytical fo…