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How to apply Uniform Variable load

Posted Mar 31, 2023, 7:01 a.m. EDT Structural Mechanics, Structural Dynamics Version 5.4 1 Reply

Kumar David
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i need to Apply UVL load along Height of Column in soil Mechanics. can anyone please help me on this

1 Reply Last Post Mar 31, 2023, 8:02 a.m. EDT
Magnus Ringh COMSOL Employee

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Posted: 2 years ago Mar 31, 2023, 8:02 a.m. EDT

Hi Kumar,

In a COMSOL Multiphysics text field for a load, for example, you can type any expression as a function of x or y, for example. Such as F0*x[1/m] for an easy example of a force F0 defined as a constant in COMSOL Multiphysics; then this load varies linearly along a boundary that extends from 0 to 1 in the x-direction (I used the COMSOL unit syntax to "dedimensionalize" the x-coordinate so that the unit remains the one for a force). For boundaries that are not aligned with an axis, you can use the predefined surface-boundary parameterization variables s, s1, and s2 for defining distributed loads (see the documentation for more information). There are also plenty of other mathematical functions, geometric variables, and more for modeling many types of loads or other inputs. Just type it in!

Best regards,

Magnus

Hi Kumar, In a COMSOL Multiphysics text field for a load, for example, you can type any expression as a function of *x* or *y*, for example. Such as `F0*x[1/m]` for an easy example of a force `F0` defined as a constant in COMSOL Multiphysics; then this load varies linearly along a boundary that extends from 0 to 1 in the *x*-direction (I used the COMSOL unit syntax to "dedimensionalize" the *x*-coordinate so that the unit remains the one for a force). For boundaries that are not aligned with an axis, you can use the predefined surface-boundary parameterization variables `s`, `s1`, and `s2` for defining distributed loads (see the documentation for more information). There are also plenty of other mathematical functions, geometric variables, and more for modeling many types of loads or other inputs. Just type it in! Best regards, Magnus

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