Convergence problem in 2-d axisymmetric elasto-plastic formulation
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Dear all,
I am trying to solve the thermal ratcheting of a hollow cylinder using elasto-plastic formulation.
I am applying the moving thermal gradient in axial direction. Our FEM code(Newton Raphson) is converging for first increment but after that it is diverging. I have used 8 noded serendipity element with 9 gauss point.
Anyone can please help me that why it is happening?
Thanks
Raj
Lie Derivative, Deformation Rate, Velocity Gradient
I'm trying to understand elastic deformation using the Lie derivative. I've read a good summary on Wiki but want other sources to review. Can anyone offer any sources &/or explanations. I need something fairly basic. Thanks, John.
Rayleigh damping: how to match the model frequences to the frequences of the measurements?
I hope that the mecanicians can help me to solve my problem.
Is there any possibility to match the frequences of the physical model to the mesurement data?
Modal Analysis in Ansys to get natural frequencies and compare them with theory results
Hi, I'm Pietro, a short term Italian incoming student at VT (virginia tech).
My advisor, in order to start my thesis there about skin friction coefficients in a scramjet combustion chamber, gave me a Modal analysis to do on a gage described as follow:
a cantilever beam (1mm diameter and 3cm long cylindrical shape) with 1mm depth and 1cm diameter cylindrical flat "hat" attached upon.
Base constraints: zero displacements, zero rotation
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Two positions are currently opened in Cardiff: http://www.cardiff.ac.uk/jobs/engin/lecturer-in-civil-engineering-2-pos…
I strongly encourage imechanicians to apply.
Best wishes,
Stephane
Rolling Contact Fatigue in Ansys Multiphysics
Hello all,
I want to simulate Rolling Contact Fatigue in Ansys Multiphysics. I am
not sure whether we can perform this task in Ansys Multiphysics. Can
anybody help me regarding this? Is that possible to get S-N Curve as
result? Please help me..
-Anoop
New IOSO video tutorial (with SolidWorks, Icem, CFX)
Dear Colleagues,
a new 30 min IOSO video tutorial is available for you on-line: http://vimeo.com/13029874 Step by step Optimization task solution with the aides of DS SolidWorks (parametrizator), ANSYS Icem CFD (mesh processor), ANSYS CFX (CFD software) coupled with IOSO
How to perform sequential thermo mechanical analysis using FEAP
Dear members,
I am a newbie in FEAP and I would like to perform transient heat transfer analysis followed by a series of static analysis using FEAP. Where does FEAP save the temperature history from the transient analysis and how to use this as input for the static analysis? I am using user constitutive model and most of the material parameters are temperature dependent. Which file do I need to include?
Best regads,
Vivian Tini