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[Biofilms] Help-measurement of Bulk Modulus of Biofilm

Ashkan Safari via biofilms%40net.bio.net (by ashkan.safari from gmail.com)
Mon Jun 23 09:32:38 EST 2008

Dear all,

I am looking for an standard method to measure Bulk Modulus of Biofilm. I
did not find any method in the previous literature regarding this issue..

Would you please suugest whatever you think would be useful for this type of
compression test (in hydrostatic stress condition)?

The initial test results suggests to me that biofilm can be treated as a
nearly incompressible material (Poisson's ratio of 0.49 N/m^2), this is
assumed by some other people (0.5) and others assumed 0.3 which suggest
that biofiulm is compressible...I am not clear what value I should use for

Many Thanls,

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