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2 cards from this section. Quick, good the night before a test.
Define stress and strain.
Think about how stress is applied to materials.
What does the yield strength signify?
Consider what happens to a rubber band when stretched too far.
What is the yield strength?
Consider the point where a material can't return to its original shape.
True or False: All materials exhibit the same stress-strain behavior.
Think about how rubber would compare to metal.
Given a metal with a yield strength of 250 MPa, determine whether it can withstand a stress of 300 MPa without suffering plastic deformation. Explain your reasoning.
Remember how yield strength defines the limits of elastic behavior.
If a material has a tensile test that shows ductility, what would you expect its stress-strain curve to resemble, and why?
Consider how temperature or materials can change this behavior in applications.
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