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Hello everyone,

 I have a problem with one user subroutine.

The fact is that, debugging the subroutine I see the totaltime different from the steptime. I am using just one step and the .inp implementation is veryfied with a different user subroutine, so totaltime and steptime should be exactly the same (but they are not...)

The value of the total time is around 1e-8 and the value of the steptime is around 1e-55.

Could anyone give me a clue?

Thanks in advance.

Hi,

I am analysis for installation of pile in soil (Pile rigid body and Soil Eulerian material)simulation in Abaqus\ CAE. 

I have given reference point on the pile to assign the mass of pile(top portion). (Pile penetrates vertically into the soil)

I have to give centrifugal force to Pile (300 kN), where can I assing the force? (Point of assignment). And how can I give predcribed displacement of Pile (say 10m)

I wish to plot say stresses at the centroid of each element in a set,

x-coordiante is x distance

y- coordinate is the stress.

Any simple idea please. Thanks.

-Arasu

Hi, I wish to plot tangential stress in nodes around a circle. How to accomoplish in ABAQUS? Thanking you.

-Arasu

I am trying to make a material model for my FEM come and while deriving Elasticity tensor I found a term where I have to do some tensor operation. It is as below

P:C:P^T  where all the terms are 4th order tensors. Now I konw the result of this should be a 4th order tensor only as this term is in addition with other 4th order terms. Here any (A:B) indicates Double dot product between A and B. 

Please help me out with this if you know or suggest some good tensor calculus book where I can refer for my problem.

Thanks.

This is a basic question regard to elsticity fem.

How to compute traction boundary integration numerically in elasticity fem under general situation? That is:

\int_{\Gamma} [N][t] d\Gamma,   here [N] is shape function and [t] is surface traction

 My E-mail: shengxu.xia [at] yahoo.com

Thanks a lot

Saint-Venant’s Principle in elasticity  has its over 100 year’s history. Boussinesq  and Love  announced general statements of Saint-Venant’s Principe. The early authors made  important contribution to the principle. Zanaboni “proved” a theorem ，trying to concern Saint-Venant’s Principle, but in the present paper we will prove that Zanaboni’s theorem is false.