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Hashem Mourad's picture

Postdoctoral Positions in Computational Solid Mechanics at Los Alamos National Laboratory

The Fluid Dynamics and Solid Mechanics group at Los Alamos National Laboratory is currently seeking candidates for two post-doctoral positions in the areas of theoretical and computational solid mechanics.

Further information and application instructions can be found at http://www.hr.lanl.gov/JobListing/SingleJobAd.aspx?JobNumber=218796

IMECE 2010 Student Travel Awards and Best Papers Contest

The AMD executive committee (EC) just announced the student travel awards and best paper contest for IMECE 2010. Between 10 and 15 students will be selected for travel grants of $750 each. The students who receive travel awards will also become eligible to participate in the best paper contest. This is a great opportunity for young students to present their work and meet other researchers during IMECE 2010.

Zhigang Suo's picture

Fracture of Rubber

A rubber band can be stretched several times its original length. This large deformation may hide its brittleness: the strain to rupture can be markedly reduced by the presence of a crack. This lecture describes fracture mechanic of highly deformable materials, such as rubbers and gels.

David R. Clarke's picture

Postdoctoral Fellowships in elastomers and related material sciences at Harvard

Applications are invited for one or more postdoctoral positions at the School of Engineering and Applied Sciences, Harvard University. The projects will be related to elastomer materials with relevance to their optical properties and device applications. Prior hands‐on experience in one or more areas such as polymer materials synthesis, optical measurements, polymer processing is required. The project will have a strong experimental focus and will encompass elastomer processing, physical characterization, mechanics as well as fabrication of devices based on actuation with elastomers.

Position Available - Solid Mechanics - Houston, TX

Position has be filled and is no longer available 5/4/2010.

A post-doc position in the field of Composite materials (GNU, Korea)

A post-doc position is currently available at the Research centerfor Aircraft Parts Technology in Gyeongsang National University (Jinju, SouthKorea).

The research project will be based in the Research centerfor Aircraft Parts Technology in Gyeongsang National University. The researchwill be supervised by a principal investigator of the project (Prof. Jin-HweKweon).

vicky.nguyen's picture

Journal Club March 2010: Viscoelasticity of Soft Tissues

Choose a channel featured in the header of iMechanica: 

navidtajik's picture

speckle pattern interferometry/stress measurment method

I’m working on optical method for displacement measurement. and this is interesting to know more about application and development of these methods like ESPI , SHEAROGRAPHY anf HOLOGRAPHY . for example i face with a company that climb their product can give displacement and so strain field in many material and many geometry even in 3-D shapes!!

http://www.dantecdynamics.com/Default.aspx?ID=1029 

Jianliang Xiao's picture

Mechanics of in-surface buckling of one dimensional nanomaterials on elastomeric substrates

In this recently published paper on Nanotechnology, we studied the in-surface buckling mechanics of one dimensional nanomaterials on elastomeric substrates.  Simple analytical solutions are obtained for buckling wavelength and amplitude, which can be easily applied to the in-surface buckling of different nanomaterials, such as nanowires and nanotubes.  It is shown that in-surface buckling of nanomaterials has lower energy than out-of-surface buckling, which explains the experimental observance of

HCHan's picture

Postdoc position in vascular mechanics

The Cardiovascular Biomechanics Lab in the Department of Mechanical Engineering at The University of Texas at San Antonio (UTSA) is seeking a highly motivated postdoctoral fellow to join our research team. The position is supported by a research grant from the NIH to study the mechanical stability and tortuosity of blood vessels. Qualifications include a doctoral degree in BME or ME in computational fluid mechanics, or computational biomechanics.

Integrity of Scholarly Publishing under Attack

 

This issue of CAM digest re-published D.N. Arnold's article  "Integrity under Attack - the state of scholarly publishing". The orginal article is available via weblink

http://www.ima.umn.edu/~arnold/siam-columns/integrity-under-attack.pdf

Zhigang Suo's picture

Stress Corrosion

A glass may withstand a static load for a long time (days, weeks, or years) and then, without warning, breaks suddenly. Here are salient empirical observations:

whyakhan's picture

thermal radiation analysis in ansys workbench 12

Hello everybody,

I have been assigned the task of performing thermal analysis of electronic components that involve conduction and radiation only and determine the temperature distribution on them. I am doing this in ansys workbench 12. Since I am doing thermal analysis for the first time so having problems.

Does anybody have tutorials related to performing thermal analysis in ansys workbench. Please share.

Thanks in advance.

Regards,

Muhammad Yousuf Ayub

Qing Xiang PEI's picture

Postdoctoral Research Associate Position at IHPC of Singapore

We are seeking outstanding candidates for a Postdoctoral Research Associate Position at the Institute of High Performance Computing, Singapore. The position requires a Ph.D degree in physics, chemistry, materials science, chemical engineering, mechanical engineering or equivalent experience.

Additional requirements include:

. Knowledge in mechanics of materials

Rui Huang's picture

Effects of mismatch strain and substrate surface corrugation on morphology of supported monolayer graphene

In a previous work, substrate-modulated morphology of graphene was analyzed using a numerical Monte Carlo method. Here we present an analytical approach that explicitly relates the van der Waals interaction energy to the surface corrugation and the interfacial properties. Moreover, the effect of mismatch strain is considered, which predicts a strain-induced instability under a compressive strain and reduced corrugation under a tensile strain.

Henry Tan's picture

Subsea Integrity

I am teaching Subsea Integrity for the MSc students majoring in Subsea Engineering at the School of Engineering, University of Aberdeen. This is a course that combines the fundamental principles (corrosion, fracture, fatigue and material selection) with the industry applications (subsea integrity management and implementation, cathodic protection, case studies on subsea reliability and engineering assurance).

 

Teaching time schedule

Zhigang Suo's picture

Fatigue

These notes were prepared when I taught fracture mechanics in 2010, and were updated when I taught the course again in 2014.

Notes on other parts of the course are also online.

 

question about Gurson model

I have a question regarding Gurson model. If we have a cube with initial length of unit and initial porosity of 20 percent and compress it hydrostatically in order to have a huge volume change of cube, the void growth equation in Gurson model takes a negative rate and reduces the void volume fraction to zero first and further compressing leads to no further void volume fraction change (remains zero) and no more plastic straining. Now let's load the model in tensile hydrostatic state up to a stress free configuration; the void volume fraction of the model remains zero.

Hirschberger's picture

Position for Research staff member at Leibniz Universität Hannover, Germany

The Graduate School MUSIC ("Multiscale Methods for Interface Coupling") and the
Institute of Continuum Mechanics at Leibniz Universität Hannover invites
applications for a position as a

Research Staff Member in Computational Mechanics

(Salary scale E13 TV-L)

to be appointed on 1 April 2010.

The position is embedded into the Junior Research Group on „Multiscale Modelling of
Materials and Interfaces with Size Effec
ts” and is initially limited to 1 year.

Thermal stresses from pre-defined temperature data (thermography image)

I´m facing a problem in which a I´d like to assess stresses due to thermal gradients. I have an IR thermography image (recorded as a matrix) and I like to introduce those temperatures to Abaqus via Matlab.

Is that possible? Or should I use FORTRAN with the UTEMP subroutine?

Thanks in advance,

 

Aitor  

Soil Modeling

Hi

Please help in modeling the soil.

I  modelled soil as non linear springs in Abaqus?Standarads and analysed the pipe behavior for hydrodynamic loading.

I am currently planned to model the pipe-soil interaction with soil as an 2D or 3D element along with contact properties. Give me suggestion or methods how can i model soil.Suggested reading materials.I have gone through the abaqus documentation.It tell that soil can be modeled as 2D or 3D.I am really confused which one to use. 

Please give me some steps in creating soil and pipe model .

 

Effect of the interfacial stress distribution on the material interfacial shear strength measurement

The interfacial strength is a very important material property for composite materials and other hybrid materials with different stress distributions. Will the interfacial stress distribution have a significant effect on the interfacial strength measurement?

Schematic of short-beam test with Iosipescu fixture

 Comparison between experimental and simulated fringe patterns

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