Blog posts

Residual Stresses and Poisson’s Effect Drive Shape Formation and Transition of Helical Structures

Submitted by zichen on Wed, 04/08/2015 - 21:12

Strained multilayer structures are extensively investigated because of their applications in microelectromechanical/nano-elecromechanical systems. Here we employ a finite element method (FEM) to study the bending and twisting of multilayer structures subjected to misfit strains or residual stresses. This method is first validated by comparing the simulation results with analytic predictions for the bending radius of a bilayer strip with given misfit strains.

A fully-supported Ph.D. position is available for Nanomaterials Synthesis and Characterization at Villanova University (Philadelphia, USA)

Submitted by Gang Feng on Wed, 04/08/2015 - 14:14

A doctoral (Ph.D.) research assistant (RA) student position is available on the Synthesis, Characterization, and Modeling of Pristine and Atomic-Layer-Deposition-Treated Individual Nanoparticles. The Ph.D. position is financially fully supported including the tuition and stipend.

Bekaert Lecturer (Above the Bar) in Materials Processing, UCD School of Mechanical & Materials Engineering (Termporary)

Submitted by UCDHR on Tue, 04/07/2015 - 09:27

The UCD School of Mechanical and Materials Engineering seeks to appoint an outstanding academic with a suitably strong record in Materials Processing. The post holder will be expected to contribute to the teaching of existing modules (i.e., Computational Continuum Mechanics II, Materials Science & Engineering I, Mechanical Engineering Design I) and to be responsible for delivering the core mechanical engineering module, Manufacturing Engineering I, as well as to develop additional under-graduate and masters level modules.

Lecturer (Above The Bar) in Mechanical Engineering Design, UCD School of Mechanical and Materials Engineering (Permanent)

Submitted by UCDHR on Tue, 04/07/2015 - 09:24

job

Job; lecturer

The UCD School of Mechanical and Materials Engineering seeks applications from outstanding candidates for a lecturing post in Mechanical Engineering Design to support the growth of its undergraduate and postgraduate teaching programmes and its key research priorities.

Nanobrücken 2015: A Nanomechanical Testing Workshop & Hysitron User Meeting

Submitted by Douglas Stauffer on Mon, 04/06/2015 - 20:11

conference

nanoindentation

Size effects

nanomechanical testing

Max Planck Institute of Colloids and Interfaces and Hysitron, Inc. are pleased to present Nanobrücken 2015: A Nanomechanical Testing Workshop & Hysitron User Meeting, which will take place on April 21-23, 2015 in Potsdam, Germany. Nanobrücken 2015 is the fifth edition of the now-annual Nanobrücken workshop series, having been hosted in both Saarbrücken and Dresden.

The Keynote Speaker for this year's workshop will be Prof. Mathias Göken, Universität Erlangen-Nürnberg.

Invited speakers include;

Abaqus tools

Submitted by Banan El Kerdi on Mon, 04/06/2015 - 12:09

Hello,

I want to download Abaqus on my pc but I fail .

Someone can help me to download this tools .

Thank you

What is Extreme Mechanics?

Submitted by Zhigang Suo on Mon, 04/06/2015 - 11:56

EML

This question was raised repeatedly when the journal Extreme Mechanics Letters was getting ready to launch. The editorial board did put together the aim and scope. But the journal has its own life. Once launched, it has been shaped by the community.

getting the deformation gradient from abaqus

Submitted by kishan_Govind on Sat, 04/04/2015 - 11:16

Hello everyone.

I am trying to do something with the deformation gradient in UMAT. I used F=DFGRD0 as the gradient. but i found that it always comes to be a identity tensor not only for the case of a 3d isotropic elastic material but also for the ramberg osgood model. it was very surprising for me so i also tried to print DFGRD1 it was also identity tensor.

I have used a C3D8 single element and was doing the uniaxial test. Please help me out with this.

3 Visiting Assistant Professor Positions in Mechanical Engineering at Lamar University, Beaumont, Texas

Submitted by Xuejun Fan on Fri, 04/03/2015 - 23:08

job

Visiting Assistant Professor #495212, #495213, #495214

The Department of Mechanical Engineering at Lamar University invites applications for several full-time non-tenure track Visiting Assistant Professor positions. Successful candidates will contribute to the department’s teaching mission. This includes teaching multiple undergraduate or/and graduate courses and participation in research activities.

Should entropy and temperature be dual?

Submitted by Weijie Liu on Fri, 04/03/2015 - 16:31

In Classical Continuum Mechanics, the entropy(s) and temperature(T) are considered to be dual in the second thermodynamics principle,

by define a relation between internal energy(e) and Helmhotz free energy(ψ): ψ = e - s * T . As you can find it in many CM books, such as [2008][J.N.Reddy]Introduction to Continuum Mechanics.

Here is my questions:

1. Is the transformation between internal energy and Helmhotz free energy a Legendre Transform?

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