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nanomechanics

Majid Minary's picture

AFM in Nano-Biomechanics (October Journal Club Topic)

Submitted by Majid Minary on Fri, 2011-09-30 17:37.

Introduction:


The October 2011 journal club theme is "AFM in Nano-biomechanics". Nano-biomechanics is an emerging field that aims at exploring fundamental science and engineering related to biological materials at the nanoscale (http://www.technologyreview.com/biomedicine/16475/ and http://en.wikipedia.org/wiki/Nanobiomechanics). Atomic force microscope (AFM) has been one of the instrumental tools in this field by providing pN force sensitivity, and better than nanometer spatial resolution.


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Oden Warren's picture

UPDATED: Nanobrücken II: A Nanomechanical Testing Workshop, March 22-23, 2012, INM Saarbrücken, Germany

Submitted by Oden Warren on Fri, 2012-01-13 15:18.

Dear Colleague:

You are cordially invited to attend Nanobrücken II:  A Nanomechanical Testing Workshop, jointly presented by INM - Leibniz Institute for New Materials and Hysitron, Inc., with co-sponsorship from the JEOL company. This is the second workshop in the Nanobrücken series.


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Fred Sansoz's picture

PhD Position in Nanomaterials Science at the University of Vermont

Submitted by Fred Sansoz on Fri, 2011-12-09 04:30.

An excellent student with research expertise and interest in molecular dynamics simulation and theory of mechanical and/or thermal transport properties in nanomaterials such as nanowires, bulk nanotwinned metals and graphene, is sought to fill a new PhD opening in my group starting in Fall 2012. Interested students should send me a detailed CV with a description of past research achievements and the names of references to frederic.sansoz@uvm.edu. Also please return the following form in order to determine whether you should continue with a more formal application: Pre-application.


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Payam Soltani's picture

Free Vibration of a Carbon Nanotube-Based Mass Sensor

Submitted by Payam Soltani on Wed, 2011-12-07 15:35.

Abstract:

In this paper, nonlocal Euler-Bernoulli beam theory is applied to investigate the dynamical behavior of a single-walled carbon nanotube (SWCNT) with an extra added nanoparticle. The SWCNT is assumed to be embedded on a Winkler-type elastic foundation with cantilever boundary condition. This configuration can be used as a nano-mass sensor which works on the basis of the changing the natural frequencies. The results show that the added mass causes an obvious increase in sensitivity of SWCNT-based nano-mass sensor, especially for stiff mediums, small nonlocal parameters, and stocky SWCNTs.


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Xiaodong Li's picture

Water Molecule-Induced Stiffening in ZnO Nanobelts

Submitted by Xiaodong Li on Wed, 2011-12-07 15:01.

We report the observation of remarkable water molecule-induced stiffening in ZnO nanobelts using atomic force microscopy three-point bending test. It was found that the elastic modulus of ZnO nanobelts could increase significantly from 40 GPa under ambient condition up to 88 GPa at the relative humidity level of 80%. The physical mechanism for this phenomenon was explained in terms of increasing surface stress induced by water molecule adsorption on ZnO nanobelt surface. Our first-principles density functional theory calculations revealed that the water molecules adsorbed on the ZnO surface would attract surface Zn atoms to move outward and hence increase the value of surface stress of ZnO surface. For more details, please see 


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Payam Soltani's picture

Periodic Solution for Nonlinear Vibration of a Fluid- Conveying Carbon Nanotube

Submitted by Payam Soltani on Fri, 2011-11-11 14:21.

Abstract


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Payam Soltani's picture

Nonlinear flow-induced vibration of a SWCNT with a geometrical imperfection

Submitted by Payam Soltani on Sun, 2011-10-23 06:07.


Abstract


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Kilho Eom's picture

Actuation of Microcantilever Using Light-Driven DNA Conformational Changes

Submitted by Kilho Eom on Fri, 2011-10-14 10:45.

Nanomechanical Actuation Driven by Light-Induced DNA Fuel

Kilho Eom, Huihun Jung, Gyudo Lee, Jinsung Park, Kihwan Nam, Sang Woo Lee, Dae Sung Yoon, Jaemoon Yang, and Taeyun Kwon

Abstract


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Nonlinear free and forced vibration analysis of a single-walled carbon nanotube using shell model

Submitted by payam.soltani on Sat, 2011-10-08 03:39.

Payam Soltani, J. Saberian, R. Bahramian, and A. Farshidianfar

 

http://fundamentaljournals.org/ijfps/archive.html#A14 

 

In this Paper, the nonlinear free and force vibration of a single-walled carbon nanotube (SWCNT) with simply supported ends is

investigated based on von Karman’s geometric nonlinearity. The SWCNT described as an individual shell and the Donnell’s

equations of cylindrical shells are used to obtain the governing equations. The Galerkin's procedure is used to discretized partial


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Yong Zhu's picture

Postdoctoral Position in Experimental Nanomechanics

Submitted by Yong Zhu on Thu, 2011-08-25 04:31.

A postdoctoral research position is available in Dr. Yong Zhu’s lab in the Department of Mechanical and Aerospace Engineering at North Carolina State University. We are looking for a self-motivated researcher to work on projects involving mechanics of nanostructures including nanowires and nanotubes. A Ph.D. in Mechanical Engineering, Materials Science and Engineering, Physics or a related area is required. Experience with in-situ nanomechanical testing using SEM, TEM, AFM or Raman are desirable.


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Daniel Kiener's picture

In situ nanocompression testing of irradiated copper

Submitted by Daniel Kiener on Tue, 2011-07-05 07:38.

Dear colleagues,

we recently published a paper on measuring bulk properties of irradiated copper from nanoscale samples:

http://www.nature.com/nmat/journal/vaop/ncurrent/full/nmat3055.html

Hope you find this interesting!

 

Daniel


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Daniel Kiener's picture

In situ nanocompression testing of irradiated copper

Submitted by Daniel Kiener on Tue, 2011-07-05 07:30.
In situ nanocompression testing of irradiated copper

Dear Colleagues,

we recently published a paper on measuring bulk properties of irradiated from nanoscale compression samples:

http://www.nature.com/nmat/journal/vaop/ncurrent/full/nmat3055.html

Hope you find this interesting!

 

Daniel


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Sinan Keten's picture

Call for Abstracts: Symposium 3.2/5.6 - “Molecular to Macroscale Mechanics in Biology and Engineering” at SES

Submitted by Sinan Keten on Sun, 2011-05-29 15:18.

Call for Abstracts: Symposium 3.2/5.6

"Molecular to Macroscale Mechanics in Biology and Engineering"

48th Annual Technical Meeting of Society of Engineering Sciences (SES) October 12-14, 2011 at Northwestern University (Evanston, IL)

 


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Markus J. Buehler's picture

Post-­‐doctoral research fellowship: Molecular mechanics of bone

Submitted by Markus J. Buehler on Sun, 2011-05-29 08:49.

Top candidates are sought for a collaborative research project between Dr. Sandra Shefelbine (Department of Bioengineering, Imperial College London) and Dr. Markus Buehler (Department of Civil and Environmental Engineering, Massachusetts Institute of Technology).  This project will use molecular modelling techniques and associated experimental methods to explore the collagen-apatite interface in bone. 

Shefelbine’s research group experimentally examines the structure and mechanics of bones (http://www3.imperial.ac.uk/people/s.shefelbine).  Buehler’s research group focuses on computational materials science of structural protein materials (http://web.mit.edu/mbuehler/www/).


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Kilho Eom's picture

Nanomechanical Resonators and Their Applications in Biological/Chemical Detection: Nanomechanics Principles

Submitted by Kilho Eom on Sun, 2011-03-20 06:11.

Nanomechanical Resonators and Their Applications in Biological/Chemical Detection: Nanomechanics Principles

Kilho Eom, Harold S. Park, Dae Sung Yoon, Taeyun Kwon 

 

Abstract


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Harold S. Park's picture

SES 2011: Minisymposium on Mechanics of Crystalline and Composite Nanostructures

Submitted by Harold S. Park on Tue, 2011-02-08 02:25.

Dear Colleagues:

We would like to invite you to submit an abstract for the upcoming 2011 Annual Technical Meeting of the Society of Engineering Sciences (SES 2011), to be held October 12-14, 2011, at Northwestern University in Evanston, Illinois (http://ses2011.org/).  The area of the minisymposium is "Mechanics of Crystalline and Composite Nanostructures", and we anticipate having a diverse and well-respected group of theoreticians and experimentalists give presentations on this subject.  Abstracts can be submitted by going to the following conference website:

http://ses2011.org/submit_abstracts.php

where our minisymposium is labeled 3.1.  We look forward to seeing you at Northwestern in the fall of 2011!


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Ken P. Chong's picture

New book announcement

Submitted by Ken P. Chong on Sun, 2011-01-16 16:15.

 


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Jianyu Huang's picture

Surface mediated plasticity in sub-10-nm-sized gold crystals

Submitted by Jianyu Huang on Tue, 2010-12-21 16:54.
Nature Communications 1, Article number:144 | DOI:10.1038/ncomms1149

Although deformation processes in submicron-sized metallic crystals are
well documented, the direct observation of deformation mechanisms in
crystals with dimensions below the sub-10-nm range is currently lacking.
Here, through in situ high-resolution transmission electron
microscopy (HRTEM) observations, we show that (1) in sharp contrast to
what happens in bulk materials, in which plasticity is mediated by
dislocation emission from Frank-Read sources and multiplication, partial
dislocations emitted from free surfaces dominate the deformation of


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Faculty Position Available in Computational Mechanics at UNC Charlotte

Submitted by HarishCherukuri on Wed, 2010-10-20 01:51.

 
 


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Julien Yvonnet's picture

Sixth M.I.T. Conference on Computational Fluid and Solid Mechanics: special session on Multiscale Computational Nanomechanics

Submitted by Julien Yvonnet on Wed, 2010-09-29 15:16.

We are inviting abstracts for the following special session: Multiscale Computational Nanomechanics, Sixth MIT conference on Computational Fluid and Solid Mechanics, June 15-17, 2011, Cambridge, MA, USA.

http://www.sixthmitconference.org/

Abstract submission deadline: February 15, 2011.


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Markus J. Buehler's picture

Special issue on "Computational and Theoretical Materiomics" now published (J. Computational &Theoretical Nanoscience)

Submitted by Markus J. Buehler on Sun, 2010-09-19 15:22.

The special issue on "Computational and Theoretical Materiomics: Properties of Biological and de novo Bioinspired Materials" has now been published. A list of papers is included below. A sincere thank you to all contributors! Anyone interested in a reprint of any of the articles please send me a message.


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Ali_Hadjesfandiari's picture

New perspective on Couple Stress theory resolving the indeterminacy issue

Submitted by Ali_Hadjesfandiari on Thu, 2010-09-09 19:11.

Dear fellow Mechanicians,We have done this research on couple stress theory which we believe has resolved the problem of indeterminacy in the spherical part of the couple-stress tensor and the appearance of the body couple in the constitutive relation for the force-stress tensor  (Mindlin and Tiersten, 1962).I humbly request you to read the paper and give me your


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PhD Research Positions in Computational Nanomechanics at the University of Pittsburgh

Submitted by MKirca on Sun, 2010-06-06 14:30.

Several PhD research positions are currently open in the Computational Nanomechanics Group at the University of Pittsburgh for the following research projects:

 

1.  Thermomechanical behavior of carbon-based nanomaterials

2.  Atomistic-to-continuum themomechanical theory in solids


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Dehua Yang's picture

Acurate Size Measurements of Nano Particles and Nano Pores Make Mechanical Understanding Easy

Submitted by Dehua Yang on Fri, 2010-04-30 22:40.

Encouraged by its current and prospective customers, Ebatco’s Nano Analysis and Testing Laboratory (NAT Lab) has expanded its nano/micro scale analytical and measurement capabilities significantly. More than ever before, customers can gain insights and comprehension of what is going on and why it has happened at the nano/micro scale.


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Oden Warren's picture

Nanomechanics symposium at SES 2010

Submitted by Oden Warren on Fri, 2010-04-23 17:45.

Dear Colleague: Please consider submitting your nanomechanics related abstract to Symposium 4-1 ("Nanomechanics: Beyond Modulus and Hardness") of the 47th Annual Technical Meeting of Society of Engineering Science, which takes place October 4-6, 2010 at Iowa State University, Ames, IA. The deadline for abstract submission is 5:00pm CST, Monday, June 7, 2010. The meeting's homepage can be found at www.ucs.iastate.edu/mnet/ses2010/home.html.


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