Hello all,
This is my first time posting, so hope I don't miss anything or do anything wrong.
Attached is a simple contact solution I drafted as a temporary way generate solutions fast for frictional contact
and to easily check if the solution is generating anything accurate at all with analytical comparisons.
The simulation is set up for a rigid block (diamond properties) to indent, then slide on a surface of a deformable
sample block (tungsten properties). The simulation is locked to elastic deformation. The simulation is a simplified
version of a scratch simulation I hope to generate accurate solutions for, which uses a cylinder (due to plane strain)
to indent and slide on a tungsten block that permits plastic deformation.
The issue I'm running into is that, no matter the frictional coefficient or if the simulation is assumed to be frictionless,
the output returns virtually the same dataset for all cases. The only time I see any variation between different frictional
coefficients is during the indentation phase of the simulation, where the tangential force measured at the top of the
indenter decreases for increasing coefficients, but then increases when the coefficient equals 1. I'm not sure if this is
what's supposed to happen or if there's something missing in the input file that I need to specify, all I know is that I
ran a bunch of test cases, changing the PAIR definition, and no matter what I changed, I saw a consistent behavior
of near complete invariance across all test cases.
Sorry for the long winded post, attached is my script and any help/insight would be appreciated.
