Assistant Professor of Mechanical Engineering
Computational and Theoretical Solid Mechanics
By :Payam SOLTANI, J SABERIAN, R BAHRAMIAN, A FARSHIDIANFAR
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
differential equations of the governing into the ordinary differential equations of motion. The method of averaging is applied to
Amit Acharya Claude Fressengeas
The continuum mechanics of line defects representing singularities due to terminating discontinuities of the elastic displacement and its gradient field is developed. The development is intended for application to coupled phase transformation, grain boundary, and plasticity-related phenomena at the level of individual line defects and domain walls. The continuously distributed defect approach is developed as a generalization of the discrete, isolated defect case. Constitutive guidance for equilibrium response and dissipative driving forces respecting frame-indifference and non-negative mechanical dissipation is derived. A differential geometric interpretation of the defect kinematics is developed, and the relative simplicity of the actual adopted kinematics is pointed out. The kinematic structure of the theory strongly points to the incompatibility of dissipation with strict deformation compatibility.
It is very important to visualize molecular dynamics (MD) trajectories since there are many aspects of MD simulations which are difficult to identify without a proper visualization tool. Improper bounday condition in MD is one of such examples. I use Visual Molecular Dynamics (VMD) to visualize my MD simulations. Some of my graphics and a movie, created using VMD, are shown here: http://www.sfu.ca/~nmallika/Nuwan/Welcome.html ("Current Research Projects" under "Publications" tab)
1-Adhesion phenomena across interfaces with spatially heterogeneous adhesive properties
2-Mechanical properties of new integrated flexible electronics based on RGO doped thermoplastics
3-Application of full field measurement to the identification of composite materials
The Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS) is located at the King Abdullah University of Science and Technology and forms part of the Physical Science and Engineering Division. COHMAS develops and validates techniques to achieve the better design of composite materials based structures.
The Division of Physical Sciences and Engineering at King Abdullah University of Science and Technology (KAUST) invites applications for a Postdoctoral fellow in Mechanical Engineering at the Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS, http://cohmas.kaust.edu.sa).
We seek highly motivated candidates who will be involved in a challenging project on full-field measurement based local identification of material properties, with applications to composite materials. The main objective will be to improve the robustness and confidence in image correlation (2D/3D) for recovering heterogeneity of material properties in large parts of industrial complexity and in very refined low scale microstructures.
In a set of recently published papers, the first in Nature Materials and the second in Advanced Engineering Materials , we investigate methods for designing, fabricating, and testing a new class of nano-architected lattice structures, which we refer to as nanolattices. These nanolattices are comprised of hollow tubes with lengths on the order of microns, diameters on the order of hundreds of nanometers to microns, and wall thicknesses on the order of tens to hundreds of nanometers. During the fabrication, we have a high degree of control over the geometry of the structure, the dimensions of the tubes (both the diameter and the wall thickness), and the overall size of the structure. Depending on the constituent material being used, there is the potential to tune the thickness of the tubes in a way such that a material size effect can be exploited. There are a number of different geometries that have been designed and are currently being tested, and they can be seen here. The successful fabrication and testing of architected nanolattice structures on this scale, and with this degree of fidelity, constitutes a breakthrough in materials engineering. Using advanced two-photon lithography techniques to make materials with high structural strength in combination with materials size-effects, we have begun to reach into an entirely new material parameter space.
Post-doc position in computational mechanics at the Department of Mechanical Engineering & Engineering Science, The University of North Carolina at Charlotte.
One-year contract starting on January 1, 2014 and possible extension to August 2015 depending on performance.
The group of Mechanics of Solids and Structures at the School of Engineering at the University of Brescia (Italy) has an open PhD position. The appointment will begin on January 1st 2014 for three full years.
The following topics are of interest:
1. small-scale plasticity of metals, with emphasis on modelling the size effect through strain gradient plasticity theories and dislocation mechanics. 2. micromechanics of composite materials, with emphasis on modelling failure.
Postdoc Position in Microstructural Analysis for Tissue Diagnostics Available at Heriot-Watt University (Edinburgh, UK)Submitted by Yuhang Chen on Tue, 2013-10-29 12:35.
Postdoctoral Positions in Computational Mechanics and Multiphysics at the US Naval Research LaboratorySubmitted by siddiq_qidwai on Mon, 2013-10-28 22:47.
The Multifunctional Materials Branch of the Materials Science & Technology Division at the US Naval Research Laboratory in Washington DC has an interest in postdoctoral associate candidates for several areas in computational mechanics and multiphysics.
Topic of interest include: a) biomechanics of injury at high-rate of deformation at multiple scales, b) multiscale dynamics of flexible armor, c) crystal plasticity and dislocation dynamics in electrically assisted deformation of metals, and d) multiphysics modeling of corrosion.
I am advertising a 2 to 3 year post-doctoral position to work with me on aspect of soft-tissue mechanics (modelling/computation).
I am looking for somebody with strong numerical background and some experience in the modelling of soft-tissues (brain in particular)
For more info, have a look at http://www.maths.ox.ac.uk/node/23489 or contact me directly at email@example.com.
Applications should be recievd by November 18.
Postdoc position in dynamics of magnetic structures at ENSTA ParisTech and Ecole Polytechnique (France)Submitted by Laurence Bodelot on Sat, 2013-10-26 16:14.
ENSTA ParisTech and Ecole Polytechnique are seeking a postdoctoral fellow to work on the dynamics of magnetic structures.
The objective of the project is to characterize the effects of a strong permanent magnetization on the dynamic mechanical behavior of flexible structures. (See full details in attachment)
Mechanics of Composites, 8-12 June 2014 at Stony Brook University, NY, USA [Deadline extended to October 30, 2013]Submitted by Lifeng Wang on Sat, 2013-10-26 15:03.
The 1st International Conference on Mechanics of Composites will be hosted by Stony Brook University, Long Island, New York, USA. This conference intends to bring forward the best research and applications on composite materials and structures. The conference has the support of Composite Structures, an International Journal of Elsevier.
The Conference will take place from 8-12 June 2014.
30th October 2013
- Deadline for submission of abstracts (a text of 4000 characters max.)
Ab-initio adsorption study of chitosan on functionalized graphene: critical role of van der Waals interactions.
R Rahman, D. Mazumdar
Visiting PhD student or Postdoctoral position in computational mechanics or self-healing composite materialsSubmitted by alisafarik on Thu, 2013-10-24 09:42.
I am looking for a PhD student visiting researcher position or a postdoctoral position in computational mechanics or self-healing composite materials.
Professor John Rogers is the recepient of the Robert Henry Thurston Lecture Award this year, and he will give the Thurston Lecture at 10am on Monday, November 18 during the ASME IMECE 2013. The location is the Elizabeth Ballroom (section H), 2nd floor at the Manchester Grand Hyatt.
Postdoc position open in Cardiac Biomechanics lab at University of California San Francisco Medical Center and San Francisco VASubmitted by elainetseng on Wed, 2013-10-23 23:06.
Multiple Phd. positions are available in the area of computational solid mechanics with an emphasis on multiscale modeling of polymer nanocomposites, high strain rate characterization of novel nanocomposite materials, in Mechanical Engg. Dept. in North Carolina A & T State University. Interested candidates are encouraged to communicate via email to firstname.lastname@example.org and/or email@example.com
There are several graduate positions available in thermal fluid and control area also.
East Lake International Forum for Outstanding Overseas Young Scholars
Dec 27th – 29th, 2013
Likun Tan, Amit Acharya and Kaushik Dayal (To appear in JMPS)
Controllable viscoelastic behavior of vertically aligned carbon nanotube arrays
Kilho Eom, Kihwan Nam, Huihun Jung, Pilhan Kim, Michael S. Strano, Jae-Hee Han, Taeyun Kwon