ABAQUS
Thermal Buckling using ABAQUS
Greetings,
I need to know how to specify the step in ABAQUS to perform thermal bucking analysis of shell.
Any comment, suggestion or documentation will be appreciated.
Thanks!
Wrong pore pressure and effective stress state in ABAQUS
Hey.
I want to model an anchored sheet pile wall placed in a completly saturated clay material, where
the excavation steps on the left side of the wall have to be taken into account.
I am using the keyword in ABAQUS "*Model change, Remove" to remove my elements, so I can
simulate the excavation steps. Unfortunately, my pore pressures seem stranges in the
model when I am using this keyword.
HOW TO MODEL EXTRUSION OF HOLLOW AL PROFILE THROUGH A HOLLOW DIE (PORTHOLE) IN ABAQUS
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Hello ,I am trying to model the extrusion of hollow circular tube of aluminium 6063 at 450 through a hollow die in ABAQUS.The model aborts due to excessive distrotion.I have specified ALE adaptive meshing parameters. Has anyone explain how to choose the number of sweeps and the frequency parameters.
How to use ALE in modelling extrusion of AL circular tubes through hollow dies(porthole)
Hello,I am an MS student working on extrusion of AL tubes through hollow dies using ABAQUS.I am facing problems in the ALE settings. The job aborts due extensive distortion even after applying and increasing the number of remeshing frequency and sweeps. I greatly appriciate if any one could help me out.
Using Fortran compiler pgf90 with ABAQUS-6.9
A problem we are trying to solve in ABAQUS-6.9 involves user defined Fortran subroutine to be compiled by ABAQUS. The default compiler used by ABAQUS is ifort, but what we have is pgf90. Is it possible to make ABAQUS use pgf90 compiler instead of the default ifort ? How?
Thank you
Vaibhav Yadav
obtaining stress-strain curve parameters
Dear All,
In one of my elastic-plastic simulations, I have used the Combined hardening model with half-cycle to model its plastic behaviour. So, I've fed in a list of values from experimental data. Now, I understand that ABAQUS uses certain parameters to generate the stress-strain curve from the data that I've provided.
Is it possible to find out these parameters used by ABAQUS?
Thanks in anticipation,
Aneesh
abaqus - ball indentation- high value of stress
Dear all,
I have modeled a cyclic ball indentation problem in
Abaqus. The sphere has been modeled as axisymmetric rigid surface while
the plate is axisymmetric deformable. The material data fed in for the
plate has been obtained from low cycle fatigue experiments and the
combined hardening model using half-cycle has beem employed.
Apart from this, the loading is displacement-controlled and sphere
is the master surface while the plate is slave surface. The other
abaqus help
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i m trying to do thermal analysis of rapid manufacturing process called LENS in abaqus(64-bit). Based on thermal results(thermal odb), i m doing a stress analysis. In order to complete a 90 step analysis along with DFLUX subroutine using quadritic (DC3D20) elements (approx 30000 elements), it takes nearly 30 hours(intel core i-7 processor and 6Gb of RAM) and more than 7 days to complete stress analysis. 13-14% of the CPU usage is observed duing stress analysis. is there any way to enhance the performance??
Hydrostatic pressure stress element removal criterion in Abaqus.
Hi all,
Recently i tried Hydrostatic pressure stress element removal criterion in Abaqus(19.2.8 Dynamic failure models in the 6.9 manual) . I used 75 Mpa as cut-off pressure stress and after which the material fails. During post - processing i tried to measure the pressure stress in an element that failed but the element did not fail at 75 Mpa and i checked few other elements, also i found the same thing none of them failed at 75 Mpa. What could be the possible reason?
Thanks
Mike