Computational Mechanics Forum

Hi ,

I am trying to model cooling of molten glass in ABAQUS. Does any one knows how to convert the viscosity data for ABAQUS?

Thanks,

Soheil

Hi,




I am trying to cool glass (viscoelastic material model) from its
transition temperature to a specific temperature near its annealing
temperature by gradual cooling, by specifying the cooling rate. I want
to estimate the residual stresses as a result.




I am not clear as to how to specify the problem in ANSYS. For ex,
if I want to cool from 500 C (which is also my reference temperature)
to 200 C at the rate of 2C/sec, then how do I specify the cooling rate
and the end temperature in ANSYS?

For the those who are working on the next version of ABAQUS.

This is  a PSA, there is no damping available for anisotropic materials in ABAQUS

PJ

I have no mechanics background so be gentle. Looking for advice on how to approach this problem:

I have a long, slender, straight beam that is then bent into a curve using wire rope as a tension element between either end. Very similar to an archery bow.

In the FETI method, one need the generalized inverse of a sparse matrix K.

In my case, K is a matrix arising from the finite element discretization on a tetrahedral mesh

of linear elasticity equations. I know how to compute the gereralized inverse from the LDL^T but I am not sure how to compute the LDL^T decomposition efficently. The algorithm use both rows and columns of the matrix...

Should I use a left or right looking algorihtm ?

If someone can provide me any hint to do that, I would appreciate a lot.

Thank you !

Hi,

i'm trying to analyse a thin shell hollow cylinder with both sides open for buckling  failure under external pressure. the problem i'm facing is that the model is only bending at the sides and not showing real buckling as it should. Can i obtain buckling results in simple structural analysis? What should be my boundary conditins... and what type of shell elementy should i use, and how should i apply normal pressure uniformly on the outer surface. As i am new to Ansys please guide me wioth suitable steps.

Thank You,

aabhas

Hi All,

Could anyone please show me how to simulate crack propagation in MSC MARC 2007 ? Which parameter make the crack propagate ? Please help me! Sorry about my English.

Thanks in advance!