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Papers
61,005 resultsShowing papers similar to A numerical model to simulate the transient frictional viscoelastic sliding contact
ClearA Numerical Model for Investigating the Effect of Viscoelasticity on the Partial Slip Solution
Researchers developed a numerical model to investigate the effect of viscoelastic material properties on the partial slip solution in contact mechanics, examining how viscoelasticity alters stress and displacement fields at the contact interface compared to purely elastic assumptions.
A Fully Coupled Normal and Tangential Contact Model to Investigate the Effect of Surface Roughness on the Partial Slip of Dissimilar Elastic Materials
Researchers developed a fully coupled contact mechanics algorithm using a global shear traction search method to model partial-slip behavior between elastically dissimilar materials with rough surfaces. They found that surface coupling produces a non-linear relationship between the stick-area ratio and tangential load, with higher RMS gradient or lower RMS roughness surfaces retaining more stick regions under low-to-medium loading conditions.
Molecular simulation of the slurrying mechanism in microplastic semi-coke water slurry
Researchers used molecular simulation to study how microplastic particles influence the slurrying mechanism in semi-coke water slurry fuel systems, finding that plastic surfaces alter slurry viscosity and particle interaction dynamics.
Multiscale Modeling of Friction Coefficients: A Review from Nanocontacts to Macroscopic Sliding
This review examines multiscale modeling approaches for friction coefficients from atomic nanocontacts to macroscopic sliding behavior, finding that classical Coulomb and Amontons laws underrepresent the complexity of friction phenomena revealed by modern computational and experimental research.
Material Response to Rolling Contact Loading
This materials science study investigates how rolling contact in ball bearings causes microplastic deformation in steel, leading to crystallographic texture changes, residual stresses, and eventual fatigue failure. The term 'microplastic' in this paper refers to small-scale plastic deformation in metals and has no connection to environmental plastic pollution.
On the Formation and Characterization of Nanoplastics During Surface Wear Processes
Researchers characterized nanoplastic particle generation during surface wear processes, finding that mechanical abrasion of bulk plastic materials produces a broad size distribution of particles including sub-100 nm fragments, with surface wear rate depending on polymer hardness and contact conditions.
Influence of hard phase size and spacing on the fatigue crack propagation in tool steels—Numerical simulation and experimental validation
Not relevant to microplastics research; this paper investigates how carbide size and spacing in tool steel microstructures affects fatigue crack growth rate, with no connection to plastic pollution.
Nucleation of plasticity in nanoparticle collisions
This physics study used computer simulations to model how nanoparticles deform when they collide at different speeds, finding distinct thresholds between elastic and plastic behavior. This is a materials science study on nanoparticle mechanics with no direct relevance to environmental microplastics.
Surface Mechanical Properties and Topological Characteristics of Thermoplastic Copolyesters after Precisely Controlled Abrasion
This study characterized surface mechanical properties and texture changes in thermoplastic copolyesters after controlled abrasion testing. Understanding how polymer surfaces wear is relevant to microplastic generation, since mechanical abrasion of plastic products is a key pathway through which microplastics are released into the environment.
Theoretical Study of the Friction Coefficient in the M-B Model
This paper derived new mathematical expressions for friction coefficients in a fractal-based surface contact model, addressing how microscopic surface roughness affects macroscopic friction behavior. The model improves predictions of friction for engineering applications where surface texture matters. Better friction models contribute to more durable and efficient mechanical systems.
Nontrivial scaling exponents of dislocation avalanches in microplasticity
This physics study analyzed the statistical patterns of small-scale deformation events (dislocation avalanches) in metals to test theoretical models of material plasticity. The research is in materials physics and is not related to environmental microplastics.
A 3D Finite Element Model of Rolling Contact Fatigue for Evolved Material Response and Residual Stress Estimation
This engineering study developed a 3D finite element model for rolling contact fatigue in steel bearings to predict residual stress and material hardening. It is a mechanical engineering paper not related to environmental microplastics.
Mesoscale Deformation-induced Surface Phenomena in Loaded Polycrystals
This paper reviews numerical models of deformation-induced surface phenomena in polycrystalline metals at the micro- and mesoscale. The research is focused on materials science and has limited direct relevance to microplastic pollution.
Dynamic Processes of Substructural Rearrangement under Friction of Carbon Steel
This study examined how heat treatment affects the friction and wear properties of medium carbon steel, linking material microstructure to tribological performance. The research is focused on materials engineering with limited direct relevance to microplastic pollution or human health.
Modeling droplet-particle interactions on solid surfaces by coupling the lattice Boltzmann and discrete element methods
Researchers developed a numerical method coupling the lattice Boltzmann method for two-component fluid dynamics with the discrete element method for contact forces to model droplet-particle interactions on solid surfaces, accounting for particle wettability and friction. The coupled LBM-DEM approach enables simulation of interfacial flows with frictional solid particles relevant to microplastic transport modeling in porous and surface environments.
Bouncing window for colliding nanoparticles: Role of dislocation generation
This physics study modeled the role of dislocation generation in determining whether colliding nanoparticles stick together or bounce apart. It is a computational materials science paper unrelated to environmental microplastics.
Viscosity and transport in a model fragile metallic glass
This paper uses the term 'microplasticity' in the context of metallic glass physics, describing how thermally activated atomic movements drive deformation in amorphous metals at the microscale. This is a materials physics paper unrelated to environmental microplastic pollution.
Effects of microplastics on the rheological properties of sediment slurries in aquatic environments
Microplastics altered the rheological properties of cohesive sediment slurries in aquatic environments, reducing viscosity at low concentrations and modifying flow dynamics, with implications for understanding how microplastic-laden sediment slurries transport and deposit these contaminants.
The bouncing threshold in silica nanograin collisions
This molecular dynamics simulation study characterized collision behavior between nanoscale silica particles, identifying the threshold between sticking and bouncing under different impact conditions. It is a materials physics paper with no direct connection to microplastics or environmental health.
On some physical and dynamical properties of microplastic particles in marine environment
This study examined the physical and dynamical properties of microplastic particles in marine environments, using modeling to predict how particle shape, density, and size govern transport, dispersion, and accumulation patterns.