Understanding Plane Stress and Mohr's Circle in Truss Structures

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Discussion Overview

The discussion revolves around understanding plane stress and the application of Mohr's Circle in the context of truss structures. Participants are addressing specific homework questions related to these concepts, exploring their definitions and relationships.

Discussion Character

  • Homework-related
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant suggests that there may be an error in the angles $$\theta_s$$ or $$\theta_p$$ in their homework problem.
  • Another participant questions the relationship between part a and part b of the homework, implying they may not be connected.
  • A participant seeks clarification on the definition of plane stress.
  • There is a question regarding the accuracy of the sketch of Mohr's Circle, indicating uncertainty about its representation.
  • A participant references the placement of maximum shear stress and maximum normal stress on Mohr's Circle, indicating an attempt to understand the graphical representation.

Areas of Agreement / Disagreement

Participants express uncertainty regarding the connections between different parts of the homework and the accuracy of their sketches, indicating that multiple views and interpretations exist without a clear consensus.

Contextual Notes

Participants have not fully resolved the definitions or relationships between the concepts discussed, and there may be missing assumptions regarding the application of Mohr's Circle to the specific problems presented.

fonseh
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Homework Statement


[/B]
For part b , i think one of the angle either $$\theta_s$$ or $$\theta_p$$ is wrong
For the second question , what is plane stress ?

Homework Equations

The Attempt at a Solution


[/B]
1.) Because in mohr's circle, the maximum shear stress on the vertical axis , for the maximum normal stress , it's on the horizontal axis , right ?
 

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I am sorry that the title of the topic is confusing . I think the part a is not related to part b
 
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Or is my sketch of mohr's circle is wrong ?
 

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