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The strain and stress data is collected during the tension test on AISI 1020. Suppose the experiment ends when . Approximately, how much of the strain is plastic and how much is elastic? =0.0060 =0.0020 =0.0030 A B C D =0.0000

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ABCD

AISI 1020 is tested under tension and yield values are determined (top right). Later, a small block of AISI 1020 experiences a 3-D state of stress (top left). What is the overall safety factor?

ABCDE