Guo, Z., Tian, Yanling, Liu, Xianping, Wang, F., Zhou, C. and Zhang, D. (2017) Modeling and simulation of the probe tip based nanochannel scratching. Precision Engineering, 49 . pp. 136-145. doi:10.1016/j.precisioneng.2017.02.002 ISSN 0141-6359.

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Abstract

This paper presents the theoretical modeling and numerical simulation of the probe tip based nanochannel scratching. According to the scratching depth, the probe tip is modeled as a spherical capped conical tip or a spherical capped regular three side pyramid tip to calculate the normal force needed for the nanochannel scratching. In order to further investigate the impact of scratching speed, scratching depth and scratching direction on the scratching process, the scratching simulation is implemented in LS-DYNA software, and a mesh-less method called smooth particle hydrodynamics (SPH) is used for the sample construction. Based on the theoretical and simulated analyses, the increase of the scratching speed, the scratching depth and the face angle will result in an increase in the normal force. At the same scratching depth, the normal forces of the spherical capped regular three side pyramid tip model are different in different scratching directions, which are in agreement with the theoretical calculations in the d3 and d4 directions. Moreover, the errors between the theoretical and simulated normal forces increase as the face angle increases.

Item Type:	Journal Article
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH):	Nanotechnology, Microfluidic devices, Microfluidics, Probes (Electronic instruments)
Journal or Publication Title:	Precision Engineering
Publisher:	Elsevier Science Inc.
ISSN:	0141-6359
Official Date:	July 2017
Dates:	Date Event July 2017 Published 6 February 2017 Available 3 February 2017 Accepted
Volume:	49
Page Range:	pp. 136-145
DOI:	10.1016/j.precisioneng.2017.02.002
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Date of first compliant deposit:	2 November 2017
Date of first compliant Open Access:	6 February 2018
Funder:	Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC), Horizon 2020 (European Commission) (H2020)
Grant number:	51275337 (NSFC), 51205279 (NSFC), 51405333 (NSFC), 51420105007 (NSFC), 644971 (H2020)

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