Morh's Cicle with two shear forces

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SUMMARY

The discussion focuses on constructing Mohr's Circle for a square element subjected to two shear forces and torques. Participants emphasize the importance of calculating normal stresses (σx, σy) and shear stress (τxy) before plotting Mohr's Circle. The confusion arises from differing sign conventions used in various courses, which can affect the interpretation of torques and stresses. A clear understanding of these stresses is essential for accurately drawing Mohr's Circle and analyzing the material behavior under shear forces.

PREREQUISITES
  • Understanding of shear and normal stresses (σx, σy, τxy)
  • Familiarity with Mohr's Circle construction techniques
  • Knowledge of sign conventions in mechanics of materials
  • Basic principles of torque and its effects on materials
NEXT STEPS
  • Calculate normal and shear stresses for various loading conditions
  • Study different sign conventions in Mohr's Circle applications
  • Practice constructing Mohr's Circle with varying shear and normal stresses
  • Explore advanced topics in material failure analysis using Mohr's Circle
USEFUL FOR

Mechanical engineers, civil engineers, and students studying mechanics of materials who need to understand stress analysis and Mohr's Circle applications in structural analysis.

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Homework Statement



click on link for picture of problem
http://i21.photobucket.com/albums/b300/DrGame/morhs.jpg

The Attempt at a Solution



Well I'm just really confused because you have two torques, and you can't draw morh's circle that way.. I've tried about 3 hours of various things, but I can not get this to make sense.. can I have a hint what to do with the toques?

I've tried adding them, averaging them out..
 
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What do you mean by torques?

Take a square element and draw all the shear and normal forces on it. Pay attention to which sign convention that you are using in your course.

Start out by calculating the normal and shear stresses for each side (sigma x, sigma y, and tau xy). You are given the forces and dimensions. Once you have those, you will have the coordinates for the mohr circle.

This mohr circle part is difficult for me to assist you, because there are different sign conventions for this topic.
 
If you can get the sigmax and y, and tau xy...I can help with the mohr's circle.
 

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