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Pb with introducing compressibility/bulk modulus in Structural mechanics

Posted Apr 19, 2012, 6:15 a.m. EDT Materials, Structural Mechanics Version 4.2a 0 Replies

Karen Pascal
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Hi all,

I'm trying to model a compressible pressurized sphere within an elastic domain (model for an inflating magma chamber), using Structural Mechanics.
I apply a pressure on the sphere boundary. Logically, the volume change of the sphere should depend on its compressibility (or bulk modulus K=1/compressibility).
My problem is that, although I've tried different method to introduce the compressibility (using K directly, or defining E depending on K), the volume change I calculate is such that it looks like my sphere is incompressible

Would anyone know how to introduce the compressibility properly by any chance ??

Thanks a lot,

Karen.
0 Replies Last Post Apr 19, 2012, 6:15 a.m. EDT
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Hello Karen Pascal

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