MATF

Bulk Data Entry

MATF – Material Properties for Failure Criteria

Defines material properties and failure model parameters for Failure criteria calculations.

Field	Contents
MID	Material identification number. (Integer > 0)
CRI	CRI flag indicating that the failure criterion input data are to follow.
CRITERIA	Character String representing the chosen failure criterion. PUCK – Puck failure criterion No default (PUCK)
Vi	Material stress limits. See comment 3 for defaults (Real > 0.0)
Wi	Parameters for failure envelope. See comment 4 for defaults (Real > 0.0)

1.	To use PUCK failure criteria, MATF entry should be specified with MID referring to the corresponding material entry. Also, FT field on PCOMP, PCOMPG, or PCOMPP should be set to PUCK.

2.	MID field may refer to MAT1, MAT2, or MAT8 entries.

3.	V1, V2 ,…, V5 specify material stress limits:

V1 - tensile stress limit in longitudinal direction

V2 - compressive stress limit in longitudinal direction

V3 - tensile stress limit in lateral direction

V4 - compressive stress limit in lateral direction

V5 - in plane shear stress limit

4.	W1, W2 and W3 specify failure envelope parameters:

W1 - failure envelope factor 12(-)

W2 - failure envelope factor 12(+)

W3 - failure envelope factor 22(-)

If W2 is blank, it is set to be equal to W1, W1 and W3 should be specified.

5.	MATF entry is required only for PUCK failure criterion calculations.