User`s guide

Release 7.5 MADYMO Coupling Manual

6 Coupling with PAM CRASH/SAFE

6.1 Introduction

This section gives speciﬁc information related to coupling with PAM CRASH/SAFE.

Please note that the details of the input deck for PAM CRASH/SAFE have been based on

PAM CRASH/SAFE 2005 and may be subject to modiﬁcations. Always refer to the latest PAM

CRASH/SAFE documentation for the correct syntax.

6.2 Simulation Control

• For general simulation control, please refer to Sec.

1.1.3.

• PAM CRASH/SAFE reads the number of CPU’s it uses from the environment variable

OMP_NUM_THREADS. This number must match the number of CPU’s used by MA-

DYMO, otherwise the simulation will terminate.

6.3 PAM CRASH/SAFE Input Deck Setup

This section describes the required modiﬁcations to the PAM CRASH/SAFE input deck to

perform Basic Coupling or Extended Coupling simulations. See the PAM CRASH/SAFE User

Manual for details on the cards not mentioned here speciﬁcally. Modiﬁcations to the MADY-

MO input deck are described in Sec.

6.3.1 Basic Coupling

For Coupling either a coupling body or a coupling surface can be deﬁned.

Body Coupling

• The value deﬁned in EXTERNAL_DATA refers to the node that will be tied with the body

center of gravity. In PAM CRASH/SAFE, this node can be deﬁned as free or connectivity

node. Post-processing of this node can be done in PAM CRASH/SAFE.

Surface Coupling

• EXTERNAL_DATA contains 2 values, i.e. EXTERNAL_DATA="5 3". The ﬁrst value

deﬁned in EXTERNAL_DATA is used in PAM CRASH/SAFE to refer to part id’s. Only

in the ellipsoid case, the second value corresponds to the discretization density.