4 - Sign convention while using Mohr's circle
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What does Mohr's Circle represent?
💡 Hint: Think about graphical versus numerical methodology.
What is the sign convention for shear stress?
💡 Hint: Refer to how direction can change depending on orientation.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the angle of rotation in Mohr's Circle to find stress on the opposing plane?
💡 Hint: Think about how many degrees represent an opposing plane.
True or False: In Mohr's Circle, shear stress signs are always positive.
💡 Hint: Consider how the direction influences the sign.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Given a stress state with σ_x = 100 MPa, σ_y = 50 MPa, and τ_xy = 25 MPa, calculate the principal stresses using Mohr's Circle and determine the associated shear stresses on the principal planes.
💡 Hint: Remember to find the center using the average of σ_x and σ_y.
Explain why shear stress can appear negative when analyzed between two opposing planes in Mohr’s Circle, and provide a mathematical example.
💡 Hint: Think about sign changes and their impact during stress state transitions.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.