Minimum mesh quality for reliable morphology characterization of 3D soil particles

IF 4.5 2区工程技术 Q2 ENGINEERING, CHEMICAL

Powder Technology Pub Date : 2025-04-26 DOI:10.1016/j.powtec.2025.121062

Chen-Xi Tong , Jia-Jun Li , Quan Sun , Feng He , Sheng Zhang , Wan-Huan Zhou , Daichao Sheng

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引用次数: 0

Abstract

Remarkable advancements in computer-based optical imaging technology have greatly enhanced particle shape quantification and characterization with high efficiency. However, the varying sensitivity of different particle shape descriptors to mesh quality is often overlooked, which can affect the reliability and accuracy of particle shape characterization. In response to this issue, this study systematically investigates the impact of three-dimensional (3D) particle mesh quality on seven commonly used shape descriptors, showing that lower mesh quality can lead to greater deviations in 3D particle shape characterization. These shape descriptors are then categorized according to their scale and sensitivity to mesh quality. From this analysis, minimum mesh quality criteria are established to ensure reliable particle shape characterization. The applicability of the criteria to particles with diverse forms is evaluated, and further validation is conducted using four scanned morphologically featured particles. These findings provide essential technical guidance for determining acceptable levels of 3D particle mesh model simplification in geotechnical engineering applications.

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最小网格质量可靠的三维土壤颗粒的形态表征

基于计算机的光学成像技术的显著进步极大地提高了粒子形状的量化和表征效率。然而，不同粒子形状描述符对网格质量的不同敏感性往往被忽视，从而影响粒子形状表征的可靠性和准确性。针对这一问题，本研究系统研究了三维（3D）粒子网格质量对七种常用形状描述符的影响，结果表明，较低的网格质量会导致三维粒子形状表征的偏差较大。然后根据它们的尺度和对网格质量的敏感性对这些形状描述符进行分类。根据这一分析，建立了最小网格质量标准，以确保可靠的颗粒形状表征。评估了该准则对不同形态颗粒的适用性，并使用四种扫描形态特征颗粒进行了进一步验证。这些发现为确定岩土工程应用中可接受的三维粒子网格模型简化水平提供了必要的技术指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Powder Technology 工程技术-工程：化工

CiteScore

9.90

自引率

15.40%

发文量

1047

审稿时长

46 days

期刊介绍： Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests: Formation and synthesis of particles by precipitation and other methods. Modification of particles by agglomeration, coating, comminution and attrition. Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces). Packing, failure, flow and permeability of assemblies of particles. Particle-particle interactions and suspension rheology. Handling and processing operations such as slurry flow, fluidization, pneumatic conveying. Interactions between particles and their environment, including delivery of particulate products to the body. Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters. For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.