viscoelasticity
FE routine for Viscoelasticity
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Hi,
Does anyone have a small strain FE viscoelasticity routine or code that I can use, prefreably in Fortran? Thanks.
Shriram
viscoelastic analysis
HI!
I applied constant load on the viscoelastic body.
Now i want to see the displacement of one of the node with respect to time.
Can any body help me in this regard?
thank you.
Maxwell viscoelastic model in ABAQUS
Hi Guys,
I have the shear relaxation modulus given as: G(t)=Go*EXP(-t/tau). In ABAQUS, the normalized shear modulus for one term in Prony series is given as: g(t)=Go(1-g1(1-EXP(-t/tau)). The parameters that must be entered in ABAQUS are g1 and tau. For Maxwell (in our case) G(t=infinity)=0.
Consequently, g1=1-G(t=infinity)/Go=1. ABAQUS requires that g1 must be less than 1. Has anyone encountered this problem?
thanks
Ah
QLV in Abaqus
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How can I model QLV (Quasi Linear Viscoelasticity proposed by Fung) in Abaqus ?
If I have generate material vith viscoelastic (prony series) + hyperelastic properties, is this setup belongs to quasi-linear viscoelasticity ?
If so, How can I model linear viscoelasticity?
Quasi Linear Viscoelasticity vs. Linear Viscoelasticity
Can anyone explain what is main difference between Linear Viscoelasticity vs qlv (Quasi linear Viscoelasticity) proposed by Fung. As far as I understand stress relaxation function and elastic response functions separated and given in convolution form which provides "strain rate independent" results in qlv application.
Is linear viscoelastic description is strain dependent?
abaqus viscoelastic example
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Hi, has anyone tried the bushing example from abaqus' problems manual? The full name of the section is: transient loading of a viscoelastic bushing. The job is aborted due to some unknown set. Thanks.
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Viscoelasticity in Abaqus
Hi All,
I would like to use Abaqus to model the viscoelastic material behaviour of a polymer.
I have material data from a simple uniaxial creep experiment (nominal strain vs time). I tried to use the viscoelastic material model in Abaqus. I am a bit confused as to how I need to enter my data (what format).
The manual says I have to specify the normalized bulk and normalized shear compliance .
where is the shear compliance and the volumetric compliance