Strength of materials -- Normal stresses and Shear stresses

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SUMMARY

The discussion focuses on calculating maximum normal stress at points B and C, as well as maximum shear stress at the same points in a mechanical system. The torque equation presented, Σma=0, is confirmed as correct, leading to the determination of the force Cx. The conversation emphasizes the importance of defining the positive direction for forces in the X direction to ensure accurate calculations.

PREREQUISITES
  • Understanding of normal and shear stress concepts
  • Familiarity with torque equations in mechanics
  • Knowledge of static equilibrium equations (ΣFx=0, ΣFy=0)
  • Basic skills in free body diagram analysis
NEXT STEPS
  • Study the principles of normal and shear stress calculations in materials
  • Learn about static equilibrium and its application in mechanical systems
  • Explore torque equations and their implications in engineering mechanics
  • Investigate free body diagram techniques for analyzing forces and moments
USEFUL FOR

Mechanical engineering students, structural engineers, and anyone involved in materials science and stress analysis will benefit from this discussion.

skatoulis100
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Homework Statement



https://ibb.co/imui5b[/B]
imui5b
imui5b
a>

hey i need to calculate max normal stress at BC and max shear stress at b and c
is my torque equation right?

Homework Equations

The Attempt at a Solution


so i thought
Σma=0 Cx*6+80*6+80*2=0
i ll find cx
and then ΣFx=0
and ΣFy=0
 
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Your moment balance is correct.
 
skatoulis100 said:
Cx*6+80*6+80*2=0
Which way are you defining as positive for forces in the X direction, to the left or to the right?
 

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