Because of the large aspect ratio of its length to radius and the large surface area to volume ratio, the nanowire is highly flexural and susceptible to the adhesion influence. The bending deflection of nanowire and its adhesion effect make the previous indentation models inappropriate for the nanowire indentation test. In this paper, a new model incorporating the nanowire bending deflection, loading symmetry/asymmetry, and adhesion effect is presented and compared with the previous models. Because of the bending deflection of the flexural nanowire, the nanowire may lift-off/separate from its contacting elastic medium and the localized contact effects may thus be induced. The localized contact effects as predicted by this new model can cause the relatively large deflection difference of the nanowire in test as compared with those obtained by the previous models, which impacts directly and significantly on the interpretation of the indentation experimental data. The nanowire is modeled as a cylinder/beam and the indentation force is modeled as a concentrated force. The elastic medium is modeled as an elastic foundation. The elastic foundation behaves as a linear spring in nonadhesive Hertz contact and as a nonlinear softening spring in adhesive contact. In the Hertz contact, due to lift-off, the contact length is independent of the load. However, in adhesive contact, larger load results in smaller contact length. Unlike the Hertz contact in which lift-off always occurs when adhesion force is too large for bending cylinder to overcome, there is no lift-off for cylinder and the full contact scenario is thus formed.
Skip Nav Destination
Article navigation
January 2011
Research Papers
Modeling Nanowire Indentation Test With Adhesion Effect
Yin Zhang,
Yin Zhang
State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics,
Chinese Academy of Sciences
, Beijing 100190, China
Search for other works by this author on:
Ya-pu Zhao
Ya-pu Zhao
State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics,
Chinese Academy of Sciences
, Beijing 100190, China
Search for other works by this author on:
Yin Zhang
State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics,
Chinese Academy of Sciences
, Beijing 100190, China
Ya-pu Zhao
State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics,
Chinese Academy of Sciences
, Beijing 100190, ChinaJ. Appl. Mech. Jan 2011, 78(1): 011007 (12 pages)
Published Online: October 12, 2010
Article history
Received:
November 2, 2009
Revised:
February 7, 2010
Posted:
August 3, 2010
Published:
October 12, 2010
Online:
October 12, 2010
Citation
Zhang, Y., and Zhao, Y. (October 12, 2010). "Modeling Nanowire Indentation Test With Adhesion Effect." ASME. J. Appl. Mech. January 2011; 78(1): 011007. https://doi.org/10.1115/1.4002305
Download citation file:
Get Email Alerts
Cited By
Complex Flow Patterns in Compressible Viscoelastic Liquids: Blood Flow Through a Compliant Aorta
J. Appl. Mech (February 2025)
Extraction of Mechanical Properties of Shape Memory Alloys From Instrumented Spherical Indentation
J. Appl. Mech (February 2025)
Sound Mitigation by Metamaterials With Low-Transmission Flat Band
J. Appl. Mech (January 2025)
Related Articles
Multiscale Experiments: State of the Art and Remaining Challenges
J. Eng. Mater. Technol (October,2009)
Robust Strategies for Automated AFM Force Curve Analysis—II: Adhesion-Influenced Indentation of Soft, Elastic Materials
J Biomech Eng (December,2007)
An Extension to a Cohesive Zone Solution for Adhesive Cylinders
J. Tribol (April,2005)
Abnormal Tribological Behavior of Multiwalled Nanotube Rafts Part I: Aligned Rafts
J. Eng. Mater. Technol (October,2005)
Related Proceedings Papers
Related Chapters
Supports
Process Piping: The Complete Guide to ASME B31.3, Fourth Edition
Supports
Process Piping: The Complete Guide to ASME B31.3, Third Edition
Fabrication of MSM UV Detector Using ZnO Nanowires
International Conference on Computer and Electrical Engineering 4th (ICCEE 2011)