2. Below Figure 2 is a uniaxial tensile engineering stress-strain curve of a high strength steel...
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2. Below Figure 2 is a uniaxial tensile engineering stress-strain curve of a high strength steel (please check Moodle for the original engineering stress & strain data from this curve). a) Estimate the elastic modulus, yield strength, and toughness of this material. (5 pts) b) Plot the true stress-strain curve together with the engineering stress-strain curve on the same diagram with different colors and calculate the true stress and strain at necking. (5 pts) c) Plot a schematic diagram to show the Considére criterion for necking. (Hint: the Considére criterion essentially describes an intersection of two curves where the strain hardening rate equals the true stress) (15 pts). 1600 1400 - 1200 1000 800 600 400 - 200 Engineering stress-strain 10 15 20 25 30 Strain (%) Figure 2: Tensile engineering stress-strain curve of a steel Stress (MPa) LO 2. Below Figure 2 is a uniaxial tensile engineering stress-strain curve of a high strength steel (please check Moodle for the original engineering stress & strain data from this curve). a) Estimate the elastic modulus, yield strength, and toughness of this material. (5 pts) b) Plot the true stress-strain curve together with the engineering stress-strain curve on the same diagram with different colors and calculate the true stress and strain at necking. (5 pts) c) Plot a schematic diagram to show the Considére criterion for necking. (Hint: the Considére criterion essentially describes an intersection of two curves where the strain hardening rate equals the true stress) (15 pts). 1600 1400 - 1200 1000 800 600 400 - 200 Engineering stress-strain 10 15 20 25 30 Strain (%) Figure 2: Tensile engineering stress-strain curve of a steel Stress (MPa) LO
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Related Book For
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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