2.2 - Trigonometric formula for σ and τ
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Practice Questions
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Define normal stress.
💡 Hint: Think about the forces acting directly onto a surface.
What does shear stress represent?
💡 Hint: Consider how a sliding force acts across a material.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the term normal stress refer to?
💡 Hint: Remember how forces distribute along different surfaces.
True or False: Mohr's Circle is useful for visualizing stress transformations.
💡 Hint: Think about different orientations builders consider on a construction site.
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Challenge Problems
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A material experiences normal stress σ1 = 120 MPa and σ2 = 60 MPa. Calculate the maximum shear stress using Mohr’s Circle.
💡 Hint: Visualizing might help; plot this on Mohr's Circle.
Given a rectangular element under loading with σ = 80 Pa, τ = 40 Pa, draw the Mohr's Circle and find σ and τ for an angle of 30°.
💡 Hint: Check your trigonometric functions to aid visualization.
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