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a question about ANSYS
Mon, 2011-11-14 14:27 - tamim
I am PHD student working on distortion and residual stresses in reinforced
concrete beams (numerically and experimentally). There
are an error in my simulation using ANSYS which shows a mistake in the material
properties (tangent slope less than zero). Unfortunately I could not find the
error source. I delete a point in the TB miso table and the model was converged
but I am not sure about the result. I have tried to find the accurate way to
modify the model but I have never found any until now.
is there any body who can help me in this problem?
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The Difference between Explicit and Implicit Methods
Consider the following differential equation:
df(t)/dt=g(t)
Generally you can approximate this differential equation by:
[f(t_n+1) - f(t_n)]/(t_n+1 - t_n) = g(t_n+a)
Then you have the following choices for a:
1. If a is 1 the method is implicit,
2. If a is 1/2 the method is midpoint and
3. If a is 0 the method is explicit (t_n).
Mohsen