Material Parameter Calibration for Johnson Cook
Hi all ... Is there a way to find/calibrate material parameters for johnson and cook material model using experimental data in Abaqus? .. As far as i know abaqus has something called as data editor with which Hyperelastic materials models can be calibrated with experimental results. If not is there any other way arround to do calibration of material parameter with abaqus.
Geometric nonlinearity
hi all,
How to decide the geometric nonlinearity?.
i.e If i consider a sturcutre for example-fishing rod or wind turbine blade, how to decide that the structure is geometrically nonlinear.
Does it requires lots of calculations or by experimentation... For example by just observing the structure, is it possible to decide?
What are the reasons to consider the geometric nonliearities.
Regards
sagar
Abaqus question; assigning different temperatures to regions of a domain without causing nodal multiple values.
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Hello,
Correct Average of Stress/Strain Microfields
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This is a general micromechanic question.
Suppose we have a microstructured 2-phases material with random inclusions (or a porous material with random pores) and we make a real tensile test (monoaxial loading in the vertical direction of a specimen with nominal length L). We want to model such tensile test with FEM (for instance with Abaqus) like in this pic:
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Solving nonlinear equilibrium problem
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Hi!
I am trying to solve (for equilibrium points) a geometrically nonlinear problem of the form
f(u) = F
where u is the displacement and F is the load. At first I tried the plain
Newton method, with, perhaps obviously, limited success. I then tried to use
linesearch and trustregion strategies to improve the situation. Eventually, however,
I realized that I needed to use some form of continuation method. Though the most
commonly used methods in mechanics seems to be based on gradually increasing the
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