Two-Way Radio User Manual

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UNDEX CH ARGE PROPERTY
20.2
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UNDEX CHARGE PROPERTY: Define an UNDEX charge for incident w aves.
This option defines parameters that create the tim e histories of load, displacement, and other variables used
to simulate an underwater explos ion. This option must be used in conjunction with the
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INCIDENT WAVE
INTERACTION PRO PERTY option.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: Model or history data
Level: Model, Step
References:
•
“Acoustic loads,” Section 27.4.5 of the ABAQUS Analysis User’s Manual
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INCIDENT WAVE INTERACTION PROPERTY
There are no parameters associated with this option.
Data lines to define the UNDEX charge:
First line:
1. Charge material constant, K.
2. Charge material constant, k.
3. Charge material constant, A.
4. Charge material constant, B.
5. Adiabatic charge constant,
.
6. Ratio of specific heats for gas,
.
Second line:
1. Density of charge m aterial, .
2. Mass of charge m aterial,
.
3. Acceleration due to gravity, g.
4. Atmospheric pressure,
.
5. Wave effect parameter,
. Set to 1.0 for wave effects in the fluid and gas; set to 0.0 to neglect
these effects.
6. Flow drag coefficient,
.
Third line:
1. Time duration, .
20.2–1
ABAQUS Version 6.1 Module:
ID:
Printed on: