Contact Surface and Simple Contact

Contact surface

Simple contact

Setting condition

Settable for the objects already in contact or yet to contact.

See the first example below.

Settable on each face of the contact pair.

Not settable for the objects yet to contact.

See the second example below.

Analysis Conditions

Applicable in the steady-state analysis and transient analysis. Note: For piezoelectric analysis, only transient analysis (implicit method) is supported.

Applicable in the steady-state analysis and harmonic analysis.

Setting method

Set one as "Contactor surface" and the other as "Contactee surface".

Set "Simple contact" on each face of the contact pair.

For "Simple Contact Classification",

select one out of "Automatic judgment"

"Bond", "Slip" and "Off contact"

Calculation time

Long

(Might not converge)

Short

(Easier to converge)

Calculates just once if one out of

"Bond", "Slip" and "Off contact" is selected.

Coefficient of friction

Set for each boundary pair.

Set in the "simple contact" dialog box.

Peel strength

Not settable

Settable in the "simple contact" dialog box.

Output of contact force

The results for each boundary pair are output.

The results for each simple contact boundary are output.

Generation of contact force

Contact force is generated at the contact location calculated from the renewed displacement.

The large displacement at the contact area is supported.

Contact force is generated inside the elements in contact before the deformation.

The displacement at the contact area is presumed to be small.