CVE_3012_Session_02_Class_Exercise_Stres - σ y = σ u = σ...

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CVE 3012 Class Exercise – Stress/Strain Curve 1) Given: Aluminum tensile test plot below and data on page 3. a) Label the elastic and plastic portion of the stress-strain curve. b) Label yield strength ( σ y ), tensile/ultimate strength ( σ u ), rupture strength ( σ r ) on the Stress- Strain Curve and show their values below.
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Unformatted text preview: σ y = σ u = σ r = c) Determine the 0.2% offset yield stress. σ y (.2% offset) = d) Determine the approximate elastic modulus of the specimen. Show work. e) Is this material brittle or ductile. Explain your answer. f) Has the specimen experienced necking? Explain your answer....
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