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PELASFX |
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PELASFX |
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»Click here to display Table of Contents«
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PELASFX |
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PELASFX |
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Bulk Data Entry
PELASFX – Scalar Elastic Property
Description
Used to define the stiffness and stress coefficient of a scalar elastic element (spring) by means of the CELAS1 or CELAS3 entry. This property is not affected by translational and rotational stiffness limits specified using PARAM, ELASSTIF.
Format
(1) |
(2) |
(3) |
(4) |
(5) |
(6) |
(7) |
(8) |
(9) |
(10) |
PELASFX |
PID |
K |
GE |
S |
PID |
K |
GE |
S |
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Field |
Contents |
PID |
Unique scalar elastic property identification number. No default (Integer > 0) |
K |
Elastic property value. No default (Real) |
GE |
Damping coefficient. To obtain the damping coefficient GE, multiply the critical damping ratio, C/C0, by 2. GE is ignored in transient analysis, if PARAM, W4 is not specified. Default = 0.0 (Real) |
S |
Stress coefficient. Default = 0.0 (Real) |
| 1. | Be careful using negative spring values. |
| 2. | One or two elastic spring properties may be defined on a single entry. |
| 3. | The element force of a spring is calculated from the equation: |
F = k * (u1 – u2)
Where, k is the stiffness coefficient for the scalar element and u1 is the displacement of the first degree-of-freedom listed on the CELAS entry. Element stresses are calculated from the equation: s = S * F, where, S is the stress coefficient as defined above.
| 4. | This card is represented as a property in HyperMesh. |
See Also:
