Two-Way Radio User Manual

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INCIDENT WAVE
9.8
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INCIDENT WAVE: Define incident wave loading for a blast or scattering load on a
boundary.
The preferred interface for applying incident wave loading is the
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INCIDENT WAVE INTERACTION
option used in conjunction with the
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INCIDENT WAVE INTERACTION PROPERTY option. The
alternative interface uses the
*
INCIDENT WAVE option to apply incident wave loading. The alternative
interface will be removed in a subsequent release.
The
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INCIDENT WAVE PRO PERTY option must be used in conjunction with the
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INCIDENT WAVE
option. If the incident wave field includes a reflection off a plane outside the b oundaries of the mesh, this
effect can be modeled with the
*
INCIDENT WAVE REFLECTION option.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: History data
Level: Step
References:
•
“Acoustic, shock, and coupled acoustic-structural analysis,” Section 6.9.1 of the ABAQUS A nalysis
User’s Manual
•
“Acoustic loads,” Section 27.4.5 of the ABAQUS Analysis User’s Manual
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INCIDENT WAVE PROPERTY
• *
INCIDENT WAVE REFLECTION
Required parameter:
PROPERTY
Set this param eter equal to the name of the
*
INCIDENT WAVE PROPERTY option defining the
incident wave field.
Required, mutually exclusive parameters:
ACCELERATION AMPLITUDE
Set this parameter equal to the name of the amplitude curve defining the fluid particle acceleration
time history at the standoff point (“Amplitude curves,” Section 27.1.2 of the ABAQUS Analysis
User’s Manual). This amplitude c urve will be used to compute the fluid traction only: a solid surface
requiring a pressure load cannot be specified on th e data line of an
*
INCIDENT WAVE option if
the ACCELERATION AMPLITUDE parameter is used.
This parameter is valid only for planar incident waves using the
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INCIDENT WAVE
PROPERTY, TYPE=PLANE option. Reflected loads, using the
*
INCIDENT WAVE
REFLECTION option, are not permitted in this case.
9.8–1
ABAQUS Version 6.1 Module:
ID:
Printed on: