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Harold S. Park's picture

Journal Club Theme of June 2016: 2D Materials: Current and Future Directions

Two-Dimensional (2D) materials have been widely studied since the discovery of graphene in 2004.  Many of the initial works on the various 2D materials (graphene, MoS2 and other transition metal dichalcogenides, black phosphorus, and others like the monochalcogenides) by mechanicians focused on issues like ideal strength, and appropriate methods to calculate the bending modulus.  Some of these, and other issues, were reviewed by Sulin Zhang in a J-Club from March 2015 (http://imechanica

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Post-Doctoral Position in Bone Biomechanics

A position for a post-doctoral researcher is available in the Microstructure Testing and Analysis Laboratory, School of Mechanical Engineering at Purdue University. The individual appointed to the position will be responsible for research on failure of trabecular bone. A strong background in solid mechanics is desired, with knowledge of numerical simulation. Interest and willingness to participate in an interdisciplinary research team is essential. The position is available for a start Sept. 1, 2016.

Jaafar El-Awady's picture

Post-Doctoral Position in Coarse-Grained Molecular Dynamics Simulations of Polymers

Post-Doctoral Position in Coarse-Grained Molecular Dynamics Simulations of Polymers


(Grant Requirement: U.S. Citizenship or Green Card)


We are soliciting applications from outstanding candidates for a postdoctoral research position in the Computational & Experimental Materials Engineering Laboratory, at the Department of Mechanical Engineering, Johns Hopkins University starting immediately. This will be a one year position renewable depending on performance.

Frederick Gosselin's picture

PhD Position in Experimental and Computational Fluid-Structure Interactions

Funded PhD thesis in Mechanical Engineering

Computational and experimental investigation on the dynamic stability of a flat plate deforming with large amplitude under fluid flow

A fully funded thesis project is proposed at Ecole Polytechnique in Montreal, Canada to start in 2017.

Ajeet Kumar's picture

PhD/Postdoc position at IIT Delhi

A PhD/Postdoc position is available in my group to work in the broad area of "Molecular origin of elastic/plastic deformations in nanorods". The PhD applicant should have good background in mathematics and solid mechanics. The postdoc candidate should preferably also be familiar with molecular modeling of materials. Interested candidates are encouraged to email me at (or alongwith with their CV.

Dr Ajeet Kumar

Dept. of Applied Mechanics

sol (amount of solute in entire model)


during a mass diffusion step, what is the unit of the history output sol (amount of solute in entire model)?

any help is appreciated

Ajeet Kumar's picture

Effect of material nonlinearity on spatial buckling of nanorods and nanotubes

You may be interested in reading our following article: We show the importance of incorporating material nonlinearity for accurate simulation of nanorods and nanotubes. The linear material laws are shown to give completely erroneous results. The nonlinear material laws for nanorods were obtained using the recently proposed "Helical Cauchy-Born rule". We also discuss how surface stress affects buckling in such nanostructures.

niaz abdolrahim's picture

Postdoc position in computational simulations at University of Rochester

One postdoc position is available in professor Abdolrahim’s group in the department of mechanical engineering at University of Rochester (

Assistant or Associate Professor position at the Faculty of Aerospace Engineering, TU Delft, The Netherlands

A new tenure-track faculty position is available in the group of Aerospace Structures and Computational Mechanics (ASCM) at the faculty of Aerospace Engineering of Delft University of Technology in the Netherlands.


One Ph.D position is available in the field of computational modelling in the research group of Dr Parashar at the Indian Institute of Technology Roorkee. Brief description of the doctoral research project and minimum candidature requirements are as:

How to give a relation in DEFORM 3D??

How can I give an inter-object relation between two plastic workpieces which one of them is inside the other one at DEFORM 3D V6.1??

The workpieces are being twist and extrusion at a time.

How to call UEXTERNALDB subroutine

Hi, I'm new user of ABAQUS. I'm trying to develop a model that involve one further output variable (the degree of cure of a polymer). I thought to use the subroutine UEXTERNALDB to write and read from an external file the array containing the values of this output variable in each element. But I couldn’t find out how to call this subroutine in the .inp file. Does anyone have any suggestion for my problem?

Thank you

Active stretching shock wave as reactive engine

The drivers for move of the rockets are designed in form that or the other version of the Laval nozzle.The reactive force of the traction which is created by such driver   can essentially be increased if in the outer section of nozzle is placed an active shock wave of stretching (depression): then the reactive force of the traction


<p>How should I describe a boundary condition (inter-object relation) between two plastic workpieces which one of them is inside the other one??</p>
<p>The whole work pieces are being cold forming by DEFORM 3D V6.1</p>

A.Tabarraei's picture

Ph.D. position in computational solid mechanics

A PhD position is available in the Department of Mechanical Engineering and Engineering Science at the University of North Carolina at Charlotte. The research project is on the multiscale modeling of the stress corrosion cracking. Candidates should have a strong background in continuum mechanics, finite elements and constitutive modeling. Programming experience in Fortran or C++ is required for this position. The starting date for this position is January 2017.

Opening for two new Ph.D. students in the Computational Mechanics group, The University of Iowa.

The Computational Mechanics group at The University of Iowa, led by Professor S. Rahman, is looking for two new Ph.D. students, who are capable of and interested in performing high-quality research on isogeometric methods and uncertainty quantification. The research, supported by U.S. National Science Foundation, requires building a solid mathematical foundation, devising efficient numerical algorithms, and developing practical computational tools, all associated with stochastic isogeometric analysis of complex materials and structures. A substantial background in solid mechanics with coding experience in finite-element or similar methods is a must; exposures to uncertainty quantification and probabilistic methods are highly desirable.

marco.paggi's picture

Scouting for Tenure-Track positions at IMT Lucca

Dear All,

I am pleased to inform you that an International Scouting procedure for Tenure-Track faculty positions is now open at IMT Lucca. 

The IMT School is collecting expressions of interest from exceptional candidates of all ranks in the following areas:


· Economics, Management and Data Science

· Computer Science and Systems Engineering

· Neurosciences

· Cultural Heritage

 The second area includes computational mechanics. 

Hidroxid's picture

XFEM crack under compression.

Hi all,


I am doing crack modelling (XFEM) under moving compression and traction loading in Abaqus but I get warning regarding the crack under compression load as follows:


Anyone facing the same issue?

Kind regards,


SamInfinity's picture

ABAQUS: problem in applying pressure after element deletion

 In ABAQUS, how to apply a pressure field using vdload subroutine on a newly produced surface after deletion of elements from the top surface where the pressure field was actually applied? Or in other words, how to define a new surface for applying a pressure field, where the surface on which the pressure was initially applied is deleted with the evolution of damage. 

Energy data in LS dyna


Can someone explain me what are these   

1) Rigid wall energy &

2) Hour glass energy

These are in context of LS-dyna



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