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modelling a column for the buckling
Posted 10 mars 2016, 00:01 UTC−5 Materials 1 Reply
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Dear friends,
I want to model a taper column with circular cross section in Comsol software and consider its buckling under self-weight, top point load and finally in existence of lateral load (static and dynamic). the problem at this point is that my column's modulus of elasticity varies linearly from bottom to the top of column.
is it possible to model this column and define a function for E(elastic modulus) in Comsol? if so, how can I do that? I will greatly appreciate you if you can let me know how to model my column.
Thanks for your time,
Warm regards,
Mojtaba
I want to model a taper column with circular cross section in Comsol software and consider its buckling under self-weight, top point load and finally in existence of lateral load (static and dynamic). the problem at this point is that my column's modulus of elasticity varies linearly from bottom to the top of column.
is it possible to model this column and define a function for E(elastic modulus) in Comsol? if so, how can I do that? I will greatly appreciate you if you can let me know how to model my column.
Thanks for your time,
Warm regards,
Mojtaba
1 Reply Last Post 14 mars 2016, 09:32 UTC−4
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Posted:
9 years ago
Hi,
To model a spatial variation in a material property, you can simply enter an expression like
100[GPa]+10[GPa/m]*Z
For more complicated functions, it might be easier to add a function my_extra_E which then can referenced like
100[GPa]+my_extra_E(Z)
Regards,
Henrik
To model a spatial variation in a material property, you can simply enter an expression like
100[GPa]+10[GPa/m]*Z
For more complicated functions, it might be easier to add a function my_extra_E which then can referenced like
100[GPa]+my_extra_E(Z)
Regards,
Henrik