research

How to Combine Shell Element and Solid Element in ANSYS

Submitted by allspot on Thu, 08/18/2011 - 02:51

Hello Everybody

I'm currently working on on the tubular weld of joint modeling using ANSYS

Problems that I faced was how to combine elements of the shell (for chord and brace) with solid elements (for weld) so that stress transfer can occur between two elements

one technique that I know is using MPC

is there any among you who has a tutorial about it ..?

please help.....

Call for Papers - “International Journal of Fundamental Physical Sciences (IJFPS)” - Next issue Sep. 2011

Submitted by Payam Soltani on Wed, 08/17/2011 - 15:11

research

call for papers

Dear Researchers, Scholars,

We are very glad to inform you about publishing a new quarterly journal, in Multidisciplinary Sciences and Fundamental Physical Sciences as,

“International Journal of Fundamental Physical Sciences (IJFPS)”

New ICE Journal: Géotechnique Letters

Submitted by Jean-Michel Pereira on Wed, 08/17/2011 - 11:30

research

journals

research journals

A new journal published by the Institution of Civil Engineers (UK) is available: Géotechnique Letters.

Average time to first peer review decision: 32.5 consecutive days.

First papers are available for free at the ICE Virtual Library: http://www.icevirtuallibrary.com/content/serial/geolett/fasttrack

Have a look!

Micro-mechanical device for quantitative in situ TEM nanowire testing

Submitted by Yang Lu on Wed, 08/17/2011 - 03:50

Elastic Modulus vs Hardness.

Submitted by Zartasha Mustansar on Mon, 08/15/2011 - 15:51

research

Dear All.

May I please ask what is the relationship between Elastic modulus and hardness. Is it a direct relationship? i.e. higher the hardness, higher the elastic modulus.

Also, how could we interpret this relationship in materials like living bones?

Many thanks

Zartasha

Lithiation-Induced Embrittlement of Multiwalled Carbon Nanotubes

Submitted by Jianyu Huang on Fri, 08/12/2011 - 21:52

ACS Nano, 2011, DOI: 10.1021/nn202071y

In situ TEM electrochemistry of anode materials in lithium ion batteries

Submitted by Jianyu Huang on Fri, 08/12/2011 - 21:43

Xiao Hua Liu and Jian Yu Huang, Energy Environ. Sci., 2011, DOI: 10.1039/C1EE01918J

Influence of Material Ductility and Crack Surface Roughness on Fracture Instability

Submitted by arash_yavari on Fri, 08/12/2011 - 17:18

research

fractal crack

Westergaard stress functions

subcritical crack growth

fracture instability

This paper presents a stability analysis for fractal cracks. First, the Westergaard stress functions are proposed for semi-infinite and finite smooth cracks embedded in the stress fields associated with the corresponding self-affine fractal cracks. These new stress functions satisfy all the required boundary conditions and according to Wnuk and Yavari's embedded crack model they are used to derive the stress and displacement fields generated around a fractal crack.