_expl.cntf file

An OptiStruct ASCII format results file.

File Creation

This file is created when the OPTI format is selected in the CONTF I/O Options Entry, in an Explicit Dynamic Analysis (ANALYSIS=NLEXPL).

File Contents

Result
Description
Contact forces
Contact force results from explicit dynamic analysis (with contact). This file is created when format = OPTI is specified in the CONTF I/O option.

File Format

The _expl.cntf file has the following format.
Subcase ID Load ID Explicit Time Step Subcase Label
Within the Explicit Time Step section, the following information is provided.
CONTACT INTERFACE: TOTAL FORCE ACTING ON MASTER SURFACE (BASIC SYSTEM) AND TOTAL CONTACT AREA
CONTACT# FORCE-X FORCE-Y FORCE-Z MAGNITUDE AREA
CONTACT# Normal Force Tangent Force
Where,
Data
Description
CONTACT #
Contact Interface identification number (CTID on the CONTACT Bulk Data Entry).
FORCE-X
Component of the total contact force along the X-axis of the Basic system.
FORCE-Y
Component of the total contact force along the Y-axis of the Basic system.
FORCE-Z
Component of the total contact force along the Z-axis of the Basic system.
MAGNITUDE
Magnitude of the total contact force acting on the master surface.
AREA
Area of master surface under contact.
Normal Force
Resultant force along the normal direction to the master surface.
Tangent Force
Resultant force along the tangential direction to the master surface.

Comments

  1. The output frequency of the results in this file can be controlled by the value of NINT field in the NLOUT entry.