DYNAMIC MODELING OF NANO/MICROPARTICLES DISPLACEMENT WITH MULTI-POINT CONTACTBASED ON THE RUMPF MODEL

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ZAKERI MANIZHE; FARAJI JAVAD

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:8 Page(s): 0-0

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Title

DYNAMIC MODELING OF NANO/MICROPARTICLES DISPLACEMENT WITH MULTI-POINT CONTACTBASED ON THE RUMPF MODEL

Author(s)

ZAKERI MANIZHE | FARAJI JAVAD | Issue Writer Certificate

Keywords

DYNAMIC MODELINGQ2

PUSHING NANO/MICRO PARTICLESQ1

ROUGH SURFACEQ2

MULTIPOINT CONTACTQ1

Abstract

In this paper, dynamic behavior of a nano particle on a ROUGH SURFACE in pushing based on the atomicforce microscopy (AFM) was modeled and simulated by using the MULTIPOINT CONTACT model. First, amultipoint contact model was extracted for two different roughness profiles of ROUGH SURFACEs includingthe hexagonal and tetrahedral by combination of the Rumpf singular point contact model with JKR andSchwarz contact models, and the equations of the real contact area and adhesion force were proposedfor MULTIPOINT CONTACT of ROUGH SURFACEs. Then, the dynamic behavior of particles in pushing on therough substrate was modeled by using the new MULTIPOINT CONTACT model. Additionally, simulation of theparticles dynamics with radii of 50, 400 and 500 nm in moving on the different rough substrates wasperformed and analyzed, by assuming multipoint, singular point contacts, and flat surface contacts.Results showed that the MULTIPOINT CONTACT model, especially in small radiuses of roughness has anessential impact on determination the critical force. Moreover, assumptions of the flatness or thesingular point contact leads to a considerable error in estimating the critical force. Results showedprofiles of ROUGH SURFACE and roughness distribution are very important factors in determining thenumbers of the contact points, and changing the estimated amount of the critical force. In general, theobtained critical force based on the new multi point contact model in comparison with those based onthe flat surface and the singular point contact models, was decreased and increased, respectively.

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APA: Copy

ZAKERI, MANIZHE, & FARAJI, JAVAD. (2016). DYNAMIC MODELING OF NANO/MICROPARTICLES DISPLACEMENT WITH MULTI-POINT CONTACTBASED ON THE RUMPF MODEL. MODARES MECHANICAL ENGINEERING, 16(8), 0-0. SID. https://sid.ir/paper/356658/en

Vancouver: Copy

ZAKERI MANIZHE, FARAJI JAVAD. DYNAMIC MODELING OF NANO/MICROPARTICLES DISPLACEMENT WITH MULTI-POINT CONTACTBASED ON THE RUMPF MODEL. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(8):0-0. Available from: https://sid.ir/paper/356658/en

IEEE: Copy

MANIZHE ZAKERI, and JAVAD FARAJI, “DYNAMIC MODELING OF NANO/MICROPARTICLES DISPLACEMENT WITH MULTI-POINT CONTACTBASED ON THE RUMPF MODEL,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 8, pp. 0–0, 2016, [Online]. Available: https://sid.ir/paper/356658/en

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