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K
ksk_1059423212-Amethyst
12-Amethyst
June 15, 2023
Solved

Calculate the maximum deflection of a structure subjected to bending

  • June 15, 2023
  • 1 reply
  • 3305 views

Hi

I want to calculate the maximum deflection of a structure subjected to bending. The deflection occurs within the buckling length, defined as the deflection within the points of inflection i.e. where M(z)=0.

 

I have plotted the moment and the deflection in the attached file, but need further assistance finding the maximum deflection within the buckling length (see page 2 in the attached file). 

 

Any help appreciated! 

 

 

Best answer by LucMeekes

Terry's file translated to Prime 7.

 

Success!
Luc

1 reply

T
21-Topaz II
terryhendicott21-Topaz II
21-Topaz II
June 15, 2023

Hi,

Like this?

Capture.JPG

And if you include the small negative deflection at the lower point you get.

Capture2.JPG

Cheers

Terry

K
ksk_1059423212-AmethystAuthor
12-Amethyst
June 15, 2023

Thank you. What I'm really looking for is a function that automatically plots the dashed line and the "d-line" for any generic shape of the deflection curve. 

W
Werner_E25-Diamond I
25-Diamond I
June 15, 2023

Something like the attached?

Its based on Terrys solution.

You have a confusing mix at the abscissa - two quantities of completely different dimensions (units mm and kN*m).

So I decided for a dimensionless approach - after all Terry already made Mz0 and uz0 dimensionless instead of the appropriate units meter because he used root without units. So all I had to do was to get rid of the remaining units.

 

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