Abaqus Volume II: I–Z Manual do Utilizador descarregar pdf (Página 583)

100

101

UNDEX CH ARGE PROPERTY

20.2

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

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

• *

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:

1 2 ... 578 579 580 581 582 583 584 585 586 587 588 ... 627 628

Abaqus Volume II: I–Z Manual do Utilizador Página 583

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