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Hamed Hatami's picture

Ph.D. positions at Oklahoma State University

We are looking for candidates for doctoral positions in the School of Mechanical and Aerospace Engineering at Oklahoma State University to work in the area of mechanics of materials. Candidates should have earned a M.Sc. degree in Mechanical Engineering or in a related field from an accredited University. Candidates with a strong background in numerical simulations, finite element analysis, and/or computational solid mechanics will be only considered.

Massimiliano Gei's picture

Exact cloaks for bending waves in Kirchhoff plates

In this paper (JMPS, in press)

http://dx.doi.org/10.1016/j.jmps.2014.07.014

we give a proof of the feasibility of an exact cloak for bending waves in a Kirchhoff plate. See the graphical abstract for more details.

Massimiliano

Fangsen's picture

Research Scientist at Institute of High Performance Computing, A*STAR

Vibro-acoustics (2 positions)

Noise is one of the vitally important factors determining the quality of life and liveability in urban areas. We have awarded a grant to develop novel windows enabled with green and intelligent sound absorbing materials that have substantially reduced noise transmission, and at the same time maintain ventilation function to realize good thermal comfort and resource efficiency. You are welcome to apply if you are:

How to model metal flow using ANSYS APDL??

Hi,

I am trying to model Friction Stir welding using ANSYS APDL. I have two plate . By meshing I have created element on the plate. I am trying to move these element from one plate (advancing side) to other plate(retreating side) while the pin tool is rotating. Does anyone have any  idea how to do it on ANSYS APDl?

 

Thanks

 

Saad Aziz 

CONCREEP-10 Conference

CONCREEP-10,  the 10th Conference on Mechanics and Physics of Creep, Shrinkage and Durability of Concrete and Concrete Structures, will be organized  by the Vienna University of Technology (TU Wien) in cooperation with the Engineering Mechanics Institute of ASCE (EMI).  The conference will be held on September 21-23, 2015 at the  Vienna University of Technology in Vienna, Austria.  It will be chaired by Prof. Christian Hellmich, Prof. Johann Kollegger, and Prof. Bernhard Pichler, all of TU Wien.

Yonggang Huang's picture

new paper on fracking in JAM by Prof. Bazant

Fracking has been an important research topic in recent years.  JAM just published a paper "Why Fracking Works" by Professor Zdenek Bazant and his co-authors (JAM, volume 81, paper 101010, 2014).  This paper is of great interest, not only to mechanics, but also to engineers interested in fracking.

The paper is attached.

Question regarding the crack propagation direction in Abaqus

I am developing a 2D model in Abaqus v13 in order to study the fatigue properties of a plastic material in oxidative atmosphere. I am using the direct cyclic approach and the XFEM technique. When defining the crack propagation direction I can just select:

-direction perpendicular to the element 1-direction

-direction perpendicular to the element 2-direction

-maximum tangential stress criterion

I am wondering how to implement other criteria. I cannot find any specific subroutine able to deal with this. Any help would be greatly appreciated.

EMI 2015 Conference

EMI 2015, the annual conference of the Engineering Mechanics Institute of ASCE, will be held at Stanford University on June16-19, 2015. It will be chaired by Prof. Ronaldo Borja ( Department of Civil Engineering, Stanford University).

Immediate Openings for a Post-Doctoral Researcher and Ph.D. student at Johns Hopkins University

Immediate Openings for a Post-Doctoral Researcher and Ph.D. student

 at

Johns Hopkins University

Center of Excellence in Integrated Materials Modeling (CEIMM)

http://ceimm.jhu.edu, http://cmrl.jhu.edu

 

Abaqus

is there any command available to skip/suppress the element quality check, while running an analysis in abaqus?


 

Postdoctoral positions in Computational Materials

A postdoctoral positions in Computational Materials is available in the group of Peter Kroll in the Department of Chemistry and Biochemistry at UT Arlington, Arlington, TX. The project focuses on boron nitride, its conversion from "soft" hexagonal to "hard" cubic boron nitride, structural developments during sintering, and mechanical properties. Applicants will have a strong record in solid-state materials simulation and the demonstrated ability to work independently and drive a project.

Suggestions for minor project

I have been thinking of doing a college minor project. but because of limited resources of materials and equipments I can take any project so please suggest me some work. The softwares I know are ABAQUS, SOLIDWORKS, MATLAB. plz suggest 

Tenure Track Faculty Position at UBC, Vancouver

Dear Mechanicians,

The following advertisement for a tenure track faculty position will be of interest to you. Please feel free to contact me if you have queries.

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Roberto Ballarini's picture

Two post-doc positions at University of Houston

Two POSTDOCTORAL ASSOCIATE POSITIONS will be available at University of Houston. The start dates are flexible, and hopefully be filled by the end of Fall 2014. Applicants are sought in the general area of (theoretical and/or computational and/or experimental) solid mechanics, structural mechanics, structural engineering, materials science, and microelectromechanical systems (MEMS).

karelmatous's picture

Extreme Computing

There have been several discussions on "Extreme Mechanics" in recent weeks and I would like to extend this topic to "Extreme Computing". As we develop materials that are more complex, hierarchical and are spanning multiple spatial scales, we will need computational tools that can describe them well. Fluid dynamics community has long time ago embraced large-scale computing of conservation laws of mass, momentum and energy. In mechanics of materials, large-scale computing is still in infancy.

My Resume

I recently graduated from Hanyang University in South Korea with a Ph.D. in mechanical engineering. Please see my resume as attched if you are interested. 

 

H.Rahnama's picture

A UMAT Code In ABAQUS - Progressive Failure Analysis

I have written a UMAT code in ABAQUS. This UMAT degrades the young modulus of an isotropic elastic material at a point when the VonMises stress at that point reaches a specific value. It can be seen as a simple progressive failure code. I have applied this UMAT code to a Notched plate under uniform tension.

The problem is that exactly before the damage initiation, the ABAQUS/Standard diverges. I am sure that there is a very simple mistake that I just can't see!
:)

Oleksandr Glushko's picture

Recovery of electrical resistance in copper films on PET subjected to a tensile strain

For flexible electronics applications it is important to understand the behavior of electrical resistance of metal films on polymer substrates under applied tensile strain. Although the growth of resistance during tensile loading was investigated in a number of research papers, the recovery of resistance during unloading remains virtually unexplored. In this paper, substantial recovery (decrease) of electrical resistance during and after unloading is demonstrated for copper films on polyethylene terephthalate (PET) substrates subjected to a tensile strain with different peak values.

Non Linear Analysis Ansys

When Working on Ansys Non Linear Static Structural Analysis, I couldn't comprehen while defining and assigning material properties to corrosponding bodies.

When I give different random values for density in Engineering Data and runing the jobs parallely the results look SIMILAR for all the independent values, I couldn't fish out on what basis do the software is giving out results.

Xiaofei Hu's picture

Which IDE are you using for ABAQUS coding

IDE is the environment where we code, we have VS2008 for c++/c ... coding, and we also have "Qt creator" for qt related c++ coding. Do you have any idea on a friendly IDE for ABAQUS coding?

 

Thanks.

Time Domain Inverse Problems in Nonlinear Systems Using Collocation & Radial Basis Functions

Time Domain Inverse Problems in Nonlinear Systems Using Collocation & Radial Basis Functions

by T.A. Elgohary, L. Dong, J.L. Junkins and S.N. Atluri

This paper can be freely downloaded at: http://care.eng.uci.edu/pdf/Dong2014d.pdf

 

In this study, we consider ill-posed time-domain inverse problems

for dynamical systems with various boundary conditions and unknown controllers.

Dynamical systems characterized by a system of second-order nonlinear ordinary

Acoustic Heating

All -

Are there good references related to acoustic heating?  I am interested in the ability to scale down the effects of this process and looking for ideas in model development to assist.

Regards,

Luke

Abaqus python script: finding an element containing a given point

Hello!

I have a point with coordinates x,y,z. Is it possible to detemine from python script to which element this point belongs to?

 

Thank you!

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