Beam calculator or stress analysis?

[almuhandiswep]

Shouldn't the results must be the same if I did a stress analysis for "Beam" in a stress analysis environment, and in "design accelerator" environment by "Beam / column calculator"?

I did a stress analysis in a stress analysis environment, and the reaction result was: 1250 N.
And when I made the "Beam / column calculator" calculation in the design accelerator environment.
The reaction was: 1000 N
As shown in the attached picture.
Why this difference.
Aren't the results supposed to be the same?

[Rory_M]

I think the beam calculation is also taking into account the mass of the beam (25.525kg = 250.31N)

[admaiora]

Hi,

my suggestion: before exploreing advanced areas of Inventor (FEM, design accelerator) it's quite important have a knowledge of basics of Inventor.

You can't attach a iam without their parts.

If you use frame generator don't attach the FRAME subassy, but the main assembly (and all its parts and subassy)

The skeleton is missing too.

[almuhandiswep]

I apologize for the mistake.
I didn't notice that I attached the assembly, not the part.

[almuhandiswep]

I apologize for the mistake.
I didn't notice that I attached the assembly, not the part.

Below is the part file:

The skeleton just a line with dimension: 1000 mm

The beam is created by design accelerator "frame generator"

[almuhandiswep]

Is it possible that the stress analysis environment does not take Mass into account.
Especially since it is more powerful than just "Beam calculator" .

[Rory_M]

The stress environment will not take mass into account unless you tell it to. This is done by applying "Gravity" to the simulation.

"Gravity" can be found on the "Loads" tab.

[admaiora · Accepted solution]

Hi,

The issue is not the gravity (mainly). (Your weight was wrong too, 6 kg vs 25 Kg, pay attention to the density too..)

Wk and Jk are not fille out automatically for all the beam in CC.

So, you can complete them manually  with these 2 values or with measures (Section button)

With a  reaction of Fy=1059,199 N  (1000 N force +( 6,037*9,81) N weight)

With FEM

(no gravity) Fy= 1000 N

(with gravity) Fy=1060 N

[almuhandiswep]

I Know.

Also in the "Beam calculator" there is: use density.
This means gravity.

[almuhandiswep]

Please You are absolutely correct.
But please excuse me.
How do you include the mass 6.034 kg in the table?
Why can't I change the mass :25 kg in "Beam Calculator".
In other words: material.
I tried a lot but the mass remains the same: 25 kg.

When I see iProperties of beam the mass is 6 kg.
But when I intered into "Beam Calculator" its became 25.
Isn't the program supposed to immediately understand that the material is mild steel?

[admaiora]

In the material tab

[almuhandiswep]

I meant in a design accelerator environment, not a stress analysis.
In the Design Accelerator environment, materials are not linked to the Inventor library.
Therefore, the mass is: 25 Kg.
How is a material added in "beam calculator" dialog box, and how do we set its properties, such as mild steel .

[admaiora]

I meant in the material tab

[benzemaroy769]

The difference in results between stress analysis and design accelerator tools can stem from varying assumptions, calculation methods, or boundary conditions used in each environment. Understanding these differences is crucial for accurate engineering assessments.