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Conversion for a penetrometer

Conversion for a penetrometer

Conversion for a penetrometer

(OP)
Hi can someone please help me. I am trying to convert the measurements on my penetrometer to undrained shear strength. The measurements on the penetrometer are in kg/cm2 and I need to convert this measurement to kN/m2. Can anyone please help me?

RE: Conversion for a penetrometer

The relation between penetrometer (unconfined compression) and undrained shear is 2, i.e. you divid the penetrometer reading by 2.  That will give you undrained shear in kg-force/cm2.  

1 kg-force equals 9.807N = 0.009807KN
1 cm2 = 1x10-4 m2

therefore 1kg/cm2 = 98.07 KN/m2 = 1.02 ksf

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