An automated procedure for computing the packing properties of dense and locked sands by image analysis of thin sections

Clara Celauro; Maurizio Ziccarelli; Giuseppe Parla; Calogero Valore

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An automated procedure for computing the packing properties of dense and locked sands by image analysis of thin sections

机译：一种通过薄壁图像分析来计算稠密和锁定砂堆积特性的自动化程序

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摘要

The macroscopic mechanical behaviour of dense sands originates to a great extent from their microstructural characteristics such as the coordination number, the grain contact and the packing density indexes. The study of inter-granular contacts and the reckoning of these indexes may be carried out on planar images of the grains either by means of time-consuming visual inspection assisted by CAD or by automatic image analysis. An innovative method for the automatic determination of microstructural characteristics of sands based on image analysis of thin section is proposed. Tests performed on a locked sand show that the proposed method is much more effective, convenient and faster than the usual visual inspection technique. Therefore, it can be considered an extremely useful tool for calibrating predictive models for arrangements of granular media based on computer simulations.

机译：致密砂的宏观力学行为在很大程度上源于它们的微观结构特征，例如配位数，颗粒接触和堆积密度指数。晶粒间接触的研究和这些指标的计算可以通过CAD辅助的耗时的目视检查或通过自动图像分析在谷物的平面图像上进行。提出了一种基于薄壁图像分析自动确定砂土微观结构特征的创新方法。在锁紧的沙子上进行的测试表明，所提出的方法比通常的视觉检查技术更加有效，方便和快捷。因此，可以认为它是基于计算机模拟来校准粒状介质排列的预测模型的极为有用的工具。

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来源
《Granular matter》 |2014年第6期|867-880|共14页
作者
Clara Celauro; Maurizio Ziccarelli; Giuseppe Parla; Calogero Valore;
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作者单位

Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali (DICAM), Universita degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy;

Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali (DICAM), Universita degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy;

Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali (DICAM), Universita degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy;

Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali (DICAM), Universita degli Studi di Palermo, Viale delle Scienze, 90128 Palermo, Italy;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Grain contact; Locked sand; Image analysis; Segmentation technique; Packing density; Coordination number;

机译：谷物接触;锁沙;图像分析;分割技术;包装密度协调号;

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An automated procedure for computing the packing properties of dense and locked sands by image analysis of thin sections

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