Two-Way Radio User Manual

VOLUMETRIC TEST DATA

Viscoelastic material model

References:

•

“Time domain viscoelasticity,” Section 17.7.1 of the ABAQUS Analysis User’s Manual

• *

VISCOELASTIC

Optional parameter:

VOLINF

To specify creep test data, set this param eter equal to the value of the long-term, normalized

volumetric compliance,

To specify relaxation test data, set this parameter equal to the value of the long-term,

normalized volumetric modulus

The volumetric compliance is related to the volumetric modulus by

.The

ﬁtting procedure will use this va lue in the constraint

Data lines to specify volumetric creep test data for a viscoelastic material:

First line:

1. Normalized volumetric (bulk) compliance .

2. Time

Repeat this data line as often as necessary to give the compliance-time data.

Data lines to specify volumetric relaxation test data for a viscoelastic material:

First line:

1. Normalized volumetric (bulk) modulus .

2. Time

Repeat this data line as often as necessar y to give the modulus-time data.

21.7–3

ABAQUS Version 6.1 Module:

ID:

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