User`s guide

Release 7.5 MADYMO Coupling Manual

3 Madymo Input Deck Setup

In order to enable coupling to an external executable, the MADYMO input deck must contain

the <COUPLING/> element. Note that one must always select INT_MTH = "EULER" under

CONTROL_ANALYSIS.TIME for a coupling simulation.

3.1 MADYMO input deck setup for Basic Coupling

This section describes the elements that must be added to the MADYMO input deck for a Basic

Coupling simulation.

Note that basic coupling is not supported in the coupling with ABAQUS.

• Rigid bodies which are to be coupled to PARTNER are referred to under the COUPLING

element as shown in the following example:

<COUPLING_BODY

EXTERNAL_REF ="1"

BODY ="/1/1"

EXTERNAL_DATA ="163"

</COUPLING>

– The values in EXTERNAL_REF and EXTERNAL_DATA are send to PARTNER. For

more details, please refer to Sec.

6.3.1 for basic coupling to PAM CRASH/SAFE or

Sec.

7.3.1 for basic coupling to Radioss.

– Bodies cannot be coupled to LS-DYNA.

• Ellipsoids and planes which are to be coupled to PARTNER are deﬁned under the COU-

PLING element as shown in the following example:

<COUPLING_SURFACE

EXTERNAL_REF="3"

SURFACE="/2/1"

EXTERNAL_DATA="9"

</COUPLING>

– The values in EXTERNAL_REF and EXTERNAL_DATA are send to PARTNER. For

more details, please refer to Sec.

5.3.1 for basic coupling to LS-DYNA, Sec. 6.3.1 for

basic coupling to PAM CRASH/SAFE or Sec. 7.3.1 for basic coupling to Radioss.

– Cylinders cannot be coupled to LS-DYNA, PAM CRASH/SAFE and Radioss.

The elements <COUPLING_BODY/> and <COUPLING_SURFACE/> may be combined

within the same <COUPLING/> element.