Loader Boom maximum bending moment

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SUMMARY

The discussion focuses on determining the maximum bending moment on a boom, with the user reporting a calculated value of +7208.1 daNm, which is inconsistent with the shear diagram. The user has successfully identified the Normal and Shear Forces but is seeking assistance with the bending moment calculation. The conversation highlights the importance of proper support for the beam and the role of reaction forces at points A, B, D, and M in the analysis.

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  • Familiarity with shear force diagrams
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  • Review beam support conditions and their impact on bending moment calculations
  • Learn about the relationship between shear forces and bending moments
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Structural engineers, civil engineering students, and professionals involved in beam analysis and design will benefit from this discussion.

Arthur11
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TL;DR Summary: Finding maximum bending moment on a boom

I am trying to solve the problem stated in the picture below.
The answers are given.
I've manage to find the Normal and Shear Forces but I'm stuck at the bending moment.
According to my analysis the maximum bending moment is +7208,1 daNm.
This value is obviously wrong because it is not consistent with the shear diagram.

Any help would be greatly appreciated,
You can find my analysis in the attached PDF.

Loader_Boom.jpg
 

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Shouldn't this beam be somehow supported ?
 
FEAnalyst said:
Shouldn't this beam be somehow supported ?
I think it is. The forces acting at A,B,D,M are all reaction forces.
 

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