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pressure deformation linear relationship in a vessel |
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February 4, 2020, 08:35 |
pressure deformation linear relationship in a vessel
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#1 |
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Richardpluff
Join Date: May 2014
Posts: 95
Rep Power: 11 |
I have a question regarding pressure vessels.
I obtained the deformation of a vessel for a given internal pressure (in fact I have to consider plasticity of the material, I used multilinear kinematic hardening) If I use a lower internal pressure, can I establish any kind of linear relation between pressure and deformation based on my previous computation? I guess that this has no sense in my case. But let us imagine a situation of a linear elastic analysis (Hook's law). If I compute stress for a given load (let's say a pressure of 500 bar) and later I do the same with another pressure (for example 250 bar), then I will be able to obtain a linear relation between pressure and stress in my structure, and the same applies with deformation, isn't it? Thanks in advance |
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February 19, 2020, 08:38 |
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#2 |
Senior Member
Erik
Join Date: Feb 2011
Location: Earth (Land portion)
Posts: 1,166
Rep Power: 23 |
If you are using linear material properties, and linear geometry (Large deformation set to off) then everything will be linear.
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