It seems that some boundary conditions can be only prescribed on mesh nodes ,e.g, when one wants to apply hydrostatic pore pressure on a face of a dam one has to calculate (manually) the pressure on each node on that face and then put the number as a boundary condition on that node. Do you guys...
I have two steps to analyze a sample of frozen rock : Heat transfer and Static or Soils Step: upon subjecting it to heat transfer analysis the permaebility, strength , and other rock parameters will change. How can I account for that in the Static (SOILS) Step. (PLease not I am not interested...
I want to apply pore pressure BC or hydrostatic pore pressure BC on a side face (or in fact on only part of it). It seems that i should calcuate the hydrostatic pressure at each node of that side and then apply it on that node. This is a very tedious way particulrly if one has many nodes on...
I just want to change up the set-up of colours based on different Sets . I looked around 20m in the documentations on line but without finding how to do so.
Sorry from ABAQUS experts if the question is simple
I am wondering if any of you has conducted slope stability analysis with ABAQUS.
Finite element is powerfull tool for observing Slope stability behavior with time. The Maximum contour of Mises Stress can be considered as mark of the slip surface location while FOS is computed by a criterion...
1-I am not clear with the manual regarding what is the use of Stand-Alone Sketch:e.g how it is incorporated into the part or Assembly module.
2-When I want to assign different materials to a specific part or assembly I just partition them and then assign sets for these partitions and then...
I am modelling triaxial compression test with one element (quadratic).One expects to get homogeneous stress state, but why I am getting nonhomogeneous stresses ( hardening at top nodes and softening at the middle ones ).
Also when plotting the Mises countors I see discontinuity at the middles...
I am willing to get the following output : Second order of Work that is multiplication of stress and strain. Such operation seems invalid in ABAQUS
How can i do that .?
Thanks
Triaxial (consolidated-undrained) under the confining stresses (sigma3) show (note that 15% is the failure criterion according to ASTM standard):
sigma3 axial strain sigma1-sigma3 pore p
20 15 289.772839 -87.31215224
50 15.00151 172.5743 -15.5049
100 15.00212432...
Geostatic Step
The goal of this step is to make sure that the system under analysis is under equlibrium state prior to analyzing it under any external effect.Prior to external effect, ususlly a system is subject to its gravity load and one in this step has to describe intial stress condition...
Usually in geotechnical reports we conduct moisture contents an samples across the investigated depth and evaluate these numbers in parallel with the results of Atterberg's limit and hence we can know the existing state of the soil; e.g, about plastic limit (PL), lower than PL ,at liquid limit...
I am willing to run my analysis with a UVARM subroutine ( I have already got the text file of this subrotine). How can I do that? I also think that I should add some associated instructions to the Input file and Output request
Should that addition be done through Edit Keyword
Thanks
In the Visualization Module, there is Field Output under Result. As shown in this Field Output window the Stresses will be calcualted at the Integration Points while Displacements at Nodes. No how can one get the stresses to at Nodes so that this can appear in this window
Thanks
A is a field output, B is another field output. As we know, the results for each can be displayed in a contour mode (visualization). Now I do not know how to display the contours line of the ratio A/B.
Thanks for help
Hi
I do not know how reliable it is to get the bulk density of clayey plastic soil from bulk samples in the lab.
Any special recommendations about that.
Thanks
Hi
I am using ABAQUS to simulate undrained triaxial test (strain/displacement control)on soils.
I do not know if using two steps only : GEOSTATIC step followed by SOIL (consolidation) step which spans over short time (say 1 sec) and at which the prescribed displacemnet is applaied is...