Magnitude of contact normal force
Hi,
I am working on a triaxial compression test using rigid walls under 100 kPa confining pressure, and I am interesting to see the contact normal force distribution. I use i.phys.
1. The maximum normal contact force I got is about 40 N (under 100 kPa confining pressure), while the data I found in other papers usually could be several kN (such as 8 kN). Why there is such a big difference?
2. I guess one possible reason might be the young's module (E) of the material. But I use E = 2e8 Pa which is at the same magnitude of the E used in the papers I refer to, it should not lead to such a difference.
Do you have any ideas of why the forceN I get is so low? Or the result is just like this?
Many thanks!
Leonard
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