Creep and stress relaxation

Stealth101

Hi all, I have a question.

Does exists a software that is able to calculate creep and stress relaxation of a model of springs and dampers?

Is Matlab/Simulink able to do this?

Thanks in advance.

Mapes

Hi Stealth101, welcome to PF. If you're able to put the components' constitutive equations together in the s-domain, any symbolic software should be able to find the inverse Laplace transform, which will give you the equations you're looking for. Mathematica can do it, certainly; I'm pretty sure the Matlab can also, but I don't have that immediately at hand.

Stealth101

Quote by Mapes

If you're able to put the components' constitutive equations together.

I have some doubts about the equations, because I have to study a model without a free "extremity" so I can't apply the Heaviside step function in the classic way.

Practically this model has the "chassis" both on the right side and left side.

I'm sorry for my poor English.

Mapes

Still, if you can turn all the components into impedances (k for springs, sω for dashpots), hopefully you can combine them like springs and get displacement as a function of load.

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Stealth101	Creep and stress relaxation Tweet Hi all, I have a question. Does exists a software that is able to calculate creep and stress relaxation of a model of springs and dampers? Is Matlab/Simulink able to do this? Thanks in advance.

Mapes Recognitions: Gold Member Homework Help Science Advisor	Hi Stealth101, welcome to PF. If you're able to put the components' constitutive equations together in the s-domain, any symbolic software should be able to find the inverse Laplace transform, which will give you the equations you're looking for. Mathematica can do it, certainly; I'm pretty sure the Matlab can also, but I don't have that immediately at hand.

Mapes Recognitions: Gold Member Homework Help Science Advisor	Creep and stress relaxation Still, if you can turn all the components into impedances (k for springs, sω for dashpots), hopefully you can combine them like springs and get displacement as a function of load.