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3 cards from this section. Quick, good the night before a test.
What is a stress tensor?
Think about internal forces in a material.
What is Mohr’s circle used for?
Consider graphical representations of stress.
What does Mohr's circle help us visualize?
Think about tools for understanding internal forces.
Is a saddle point a local maximum?
Recall how we categorize stress points.
A structural engineer assesses a beam under load experiencing three principal stresses: λ1 = 100 MPa, λ2 = 50 MPa, and λ3 = 20 MPa. Calculate the maximum shear stress and identify the stress states represented.
What is the typical formula for shear stress in relation to principal stresses?
Describe how the Mohr's stress plane would appear if λ2 approached λ3, and what implications this has for the material's behavior.
Think about scenarios where stresses become similar and visualize the Mohr's circle dimensions.
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