EEPA Model Properties
The properties of the Edinburgh-Elasto-Plastic-Adhesive (EEPA) Contact Model model are shown below for reference. See the properties table in the EEPA “Properties” section for full details for each property.
Note
Read-only properties are indicated by (r) at right in this listing.
- eepa
- adh_exp f
χ - adhesive branch exponent with default value 1.5.
- dp_force v (r)
Fd - dashpot force. Expressed in the contact plane coordinate system.
- dp_mode i
Md - dashpot mode with default value 0.
- dp_nratio f
βn- normal critical damping ratio with default value 0.0.
- dp_sratio f
βs - shear critical damping ratio with default value 0.0.
- eepa_force v
FEEPA - EEPA force with default value 0. Expressed in the contact plane coordinate system.
- eepa_poiss f
ν - poisson’s ratio with default value 0.0.
- eepa_shear f
G - shear modulus in units of stress with default value 0.0.
- eepa_slip b (r)
s - sliding slip state.
- force_min f
fmin - minimum force with default value 1.5.
- fric f
μ - sliding friction coefficient with default value 0.0.
- ks_fac f
ksf - shear stiffness scaling factor with default value 1.0.
- lu_exp f
m - loading-unloading branch exponent with default value 1.5.
- overlap_max f (r)
δmax - maximum overlap.
- plas_ratio f (r)
λp - plasticity ratio with default value 0.5.
- pull_off f (r)
- F0 - pull-off force.
- rgap f
gr - reference gap in units length with default value 0.0.
- rr_fric f
μr - rolling friction coefficient with default value 0.0.
- rr_moment v
Mr - Rolling resistance moment with default value 0. Expressed in the contact plane coordinate system.
- rr_slip b (r)
sr - rolling slip state.
- surf_adh f
γ∗ - Effective surface adhesion energy with default value 0.0.
⇐ Edinburgh-Elasto-Plastic-Adhesive (EEPA) Contact Model | Johnson-Kendall-Roberts (JKR) Contact Model ⇒
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