Application of particle simulation methods to composite materials: a review

Yashiro, Shigeki

doi:10.1080/09243046.2016.1222508

Cited by 17 publications

(7 citation statements)

References 174 publications

(176 reference statements)

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“…It would also be useful to use computational analysis using the discrete element method to follow the movement of particles. 31)…”

Section: Resultsmentioning

confidence: 99%

Submicron imprint patterning of compound sheet with ceramic nanopowder

Taira¹,

Tsumori²

2022

Jpn. J. Appl. Phys.

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Nano imprint lithography (NIL) is highly productive process and has an advantage in its resolution of printed patterns. General NIL processes have been performed for organic resin materials, on the other hand, inorganic materials such as ceramic and glass materials have also been tried to be imprinted using mixtures of nano powders and polymer binder as starting materials. Authors already have reported this process for inorganic materials. In our previous work, line-and-space patterns with the smallest pitch of about 8 μm were shown on sintered ceramic sheets using ceramic powders with the smallest particle size of about 100 nm. In this study, we prepared alumina powders with the average particle size of about 100 nm and 5 kinds of mold with line-and-space patterns with line widths from 10 μm to 250 nm. We discussed how the pattern was affected by mold size and particle size.

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“…It would also be useful to use computational analysis using the discrete element method to follow the movement of particles. 31)…”

Section: Resultsmentioning

confidence: 99%

Submicron imprint patterning of compound sheet with ceramic nanopowder

Taira¹,

Tsumori²

2022

Jpn. J. Appl. Phys.

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“…Microscale flow in fibrous media as well as flow of fiber suspension have been studied using particle simulation methods owing to their capability to represent microstructures [31].…”

Section: Discussionmentioning

confidence: 99%

Particle simulation of dual-scale flow in resin transfer molding for process analysis

Yashiro

Nakashima

Oya

et al. 2019

Composites Part A: Applied Science and Manufacturing

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Modeling the inhomogeneous microstructures of fibrous tows is important for analyzing the process of resin transfer molding because dual-scale pores in a preform can lead to void formation. This study focused on the development of a microscopic flow analysis method to predict the impregnation of fiber bundles. The moving particle semi-implicit method was adopted to model the microstructure of a fiber bundle explicitly and inter-particle potential 2 force was introduced into the numerical model to take account for the capillary effect. The predicted process of impregnation and void formation agreed with empirical observations. The developed approach was applied to predict the relationship between the modified capillary number and void content to identify the optimal molding conditions to reduce microvoids. The obtained relationship reproduced the trends of a reported experiment, which indicates that the proposed approach will provide information about optimal conditions for minimizing void content.

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“…Particle-based methods are often criticized for their high calculation costs [47,48]. Different parallel computing architectures such as MPI [28], OpenMP [49], OpenCL [50], and CUDA [51] are commonly used to alleviate this drawback.…”

Section: Gpu Implementationmentioning

confidence: 99%

A GPU-Based δ-Plus-SPH Model for Non-Newtonian Multiphase Flows

Shi

Huang

2022

Water

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A multiphase extension of the δ-plus-SPH (smoothed particle hydrodynamics) model is developed for modeling non-Newtonian multiphase flow. A modified numerical diffusive term and special shifting treatment near the phase interface are introduced to the original δ-plus-SPH model to improve the accuracy and numerical stability of the weakly incompressible SPH model. The Herschel–Bulkley model is used to describe non-Newtonian fluids. A sub-particle term is added in the momentum equation based on a large eddy simulation. The graphic processing unit (GPU) acceleration technique is applied to increase the computational efficiency. Three test cases including, a static tank, Poiseuille flow, and submarine debris flow, are presented to assess the performance of the new multiphase SPH model. Comparisons with analytical solutions, experimental data, and previous numerical results indicate that the proposed SPH model can capture highly transient incompressible two-phase flows with consistent pressure across the interface.

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Application of particle simulation methods to composite materials: a review

Cited by 17 publications

References 174 publications

Submicron imprint patterning of compound sheet with ceramic nanopowder

Submicron imprint patterning of compound sheet with ceramic nanopowder

Particle simulation of dual-scale flow in resin transfer molding for process analysis

A GPU-Based δ-Plus-SPH Model for Non-Newtonian Multiphase Flows

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