research

  I am trying to calculate the activity of aluminium in the liquid state or solid state. The bottom line is that I want to know if Aluminium during oxidation is more active in the liquid state than in solid state.If so, how can I prove it.

Hi
all,

I am Mohammad Aramfard senior student of mechanical engineering and I joined this
great forum yesterday, so I am not very familiar with regulations and rules.

I am working on modeling CNT composites using cylindrical RVE and I found up to
now that there isn`t a viscoelastic RVE for representing behavior of these
composites.

I want to know is there any works done in this field?

And also I have another question, Is there any exact
solution for elastic cylindrical RVEs?

Thank you all,

Dear all,

In my FE model (pin on disc), I would like to define a contact property between pin and disc with a friction defination available in ABAQUS. I have assumed that friction coefficient depends on parameters like slip rate, pressure and temperature only. When i used friction coefficients with slip rate and pressure, model works without any error but if i use friction coefficients with slip rate, pressure and temperature, the model doesn't work and come up with following errors;

H. Krull and H. Yuan: Suggestions to the cohesive traction–separation law from atomistic simulations. Engineering Fracture Mechanics, Vol. 78, 2011, pp. 525-533.

To the discussion

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.....