Parameter

Values

Description

GAPCMPL

<NO, 0, YES, or 1>

Default = YES

This parameter can be used to allow/disallow the inclusion of gap and contact compliance in the calculation of global compliance.

If YES or 1, gap/contact compliances will be included in the calculation of global compliance.

If NO or 0, gap/contact compliances will not be included in the calculation of global compliance.

Note:

An example situation where the GAPCMPL parameter may be used is described as follows:

In some cases, gap/contact elements may exist with initial penetration (U0<0), these elements may produce negative contributions to the global compliance. While this is a legitimate situation (the gap/contact is releasing elastic energy, rather than accumulating it) it may cause the global compliance to be negative and thus make optimization impossible. In such cases, the GAPCMPL parameter can be used to turn off the contributions of gap/contact elements to the compliance calculation.