Bending moments and points of contraflexure

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Discussion Overview

The discussion revolves around the concepts of bending moments and points of contraflexure in the context of beam analysis. Participants are seeking assistance with specific parts of a problem related to these concepts, particularly in determining bending moments and understanding their relationship with shear forces.

Discussion Character

  • Homework-related
  • Technical explanation

Main Points Raised

  • One participant expresses difficulty in completing parts d) and e) of a problem involving bending moments and points of contraflexure.
  • Another participant inquires about the progress made on part d) and asks if the original poster understands the relationship between bending moment variation and shear force variation.
  • There is a repeated expression of difficulty regarding bending moments and points of contraflexure, indicating a need for clarification on these topics.
  • A participant suggests exploring the relationship between the derivative of the bending moment and shear force along the beam.

Areas of Agreement / Disagreement

The discussion remains unresolved, with participants expressing similar challenges but not reaching a consensus on the solutions or approaches to the problem.

Contextual Notes

Participants have not provided specific details on their calculations or assumptions, which may limit the clarity of the discussion.

ai93
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Hi
I am attempting a question on moments and beams.
I have attached the question and my solutions so far. But having trouble completing d) and e)
Can someone show how to work out bending moments and the point of contraflexure?
http://[ATTACH=full]199767[/ATTACH] [ATTACH=full]199768[/ATTACH]
[ATTACH=full]199769[/ATTACH]

any help is appreciated thanks
 

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What have you done on part d so far. To you know how to determine the bending moment variation, given the shear force variation? How are the two related?

Chet
 
Having trouble doing bending moments and points of contraflexture. That's why I need help!
 

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