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2 cards from this section. Quick, good the night before a test.
What are principal planes?
Think about conditions of stress.
Define principal stress components.
Related to traction.
What are principal planes?
Relate to traction concept.
True or False: The eigenvalues of a symmetric stress matrix can be complex.
Think about mathematical properties.
Given a stress tensor, find its eigenvalues and discuss the implications for the principal planes.
Use determinant methods for matrices.
Design a simple beam and assess the locations of maximum principal stresses under load. What safety features need to be incorporated?
Consider load distribution through the beam.
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