On the Measurement of Particle Contact Curvature and Young's Modulus Using X-ray μCT

被引：5
作者：
Wang, Li Ge [1 ,2 ]
Li, Zhipeng [3 ]
Zhang, Lianzhen [4 ]
Zhou, Rongxin [5 ]
Chen, Xizhong [6 ]
机构：
[1] Proc Syst Enterprise, London W6 7HA, England
[2] Univ Sheffield, Dept Chem & Biol Engn, Sheffield S10 2TN, S Yorkshire, England
[3] Shandong Jiaotong Univ, Sch Civil Engn, Jinan 250357, Peoples R China
[4] China Univ Petr, Coll Pipeline & Civil Engn, Qingdao 266580, Peoples R China
[5] Hefei Univ Technol, Sch Civil Engn, Hefei 230009, Peoples R China
[6] Univ Coll Cork, Sch Engn, Proc & Chem Engn, Cork T12 X020, Ireland
来源：
APPLIED SCIENCES-BASEL | 2021年 / 11卷 / 04期
基金：
美国国家科学基金会;
关键词：
contact curvature; Hertz contact theory; Young’ s modulus; Euler’ s theorem; X-ray computed micro-tomography; digital processing; MECHANICAL-PROPERTIES; ELASTIC-MODULUS; COMPRESSION; BREAKAGE; BEHAVIOR; IMPACT; GRANULES; SINGLE; FORCE; MODEL;
D O I：
10.3390/app11041752
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Contact curvature plays a pivotal role in the Young's modulus determination and mechanical response of a particle. This paper presents the sensitivity analysis of a particle morphology to contact curvature and its influence on the Young's modulus determination during the elastic deformation of a particle. X-ray computed micro-tomography (mu CT) was conducted to obtain the prototype of a single particle. The digital information of the scanned particle, including 2D slices and 3D rendering was processed and the variation of contact curvature of the particle was examined using the circular (spherical at 3D) and polynomial fitting methods. The fitting sections of the particle are taken into account. The effect of contact curvature on Young's modulus determination was investigated and it was found that Young's modulus changed substantially from global fitting to local fitting. Young's modulus is highly related to the surface roundness, which exerts a significant influence on the determination of Young's modulus.
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页码：1 / 27
页数：27
相关论文
共 39 条
[1]  
[Anonymous], 2012, D698 ASTM
[2]   Breakage behaviour of spherical granulates by compression [J].
Antonyuk, S ;
Tomas, E ;
Heinrich, S ;
Mörl, L .
CHEMICAL ENGINEERING SCIENCE, 2005, 60 (14) :4031-4044
[3]   Energy absorption during compression and impact of dry elastic-plastic spherical granules [J].
Antonyuk, Sergiy ;
Heinrich, Stefan ;
Tomas, Juergen ;
Deen, Niels G. ;
van Buijtenen, Maureen S. ;
Kuipers, J. A. M. .
GRANULAR MATTER, 2010, 12 (01) :15-47
[4]  
Bossy John., 1975, The English Catholic Community, P1570
[5]   Particle shape characterisation using Fourier descriptor analysis [J].
Bowman, ET ;
Soga, K ;
Drummond, W .
GEOTECHNIQUE, 2001, 51 (06) :545-554
[6]   The influence of particle characteristics on the behaviour of coarse grained soils [J].
Cavarretta, I. ;
Coop, M. ;
O'Sullivan, C. .
GEOTECHNIQUE, 2010, 60 (06) :413-423
[7]  
Chen H., 2017, POWDER TECHNOL, V318, P507, DOI [10.1016/j.powtec.2017.05.047, DOI 10.1016/J.POWTEC.2017.05.047]
[8]  
Chung Y.C, 2006, THESIS U EDIBURGH ED, P1
[9]   Stiffness of geomaterials at very small strains [J].
Clayton, CRI ;
Heymann, G .
GEOTECHNIQUE, 2001, 51 (03) :245-255
[10]  
Eisenhart L.P., 2004, TREATISE DIFFERENTIA
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