The ratio between lateral strain and longitudinal strain is known as Poisson's ratio      Select one: True  False

True stress (MPa) 8-7 Figure 8-21 is a plot of true stress versus true strain for a metal. For total imposed strains of 0.1, 0.2, 0.3 and 0.4, determine the elastic and plastic components of the strain. The modulus of elasticity of the metal is 100 GPa. 600 500 400 300 200 100 0.1 0.2 0.3 0.4 0.5 True strain Figure 8-21 A true stress versus true strain curve for a metal (for Problem 8-7).

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When an element of material is subjected to deformations that only occur in a single plane, it undergoes plane strain. True or false?

If the engineering strain in a tensile bar is 0.0025 and Poisson’s ratio is 0.33, find the original length and the original diameter if the length and diameter under load are 2.333 ft. and 1.005 in. respectively.

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solve all 3

6. State your answers to the following questions.Strain Gauge represents the deformation of a material through a change in resistance. If so, explain how temperature will affect the strain gauge in the experimental environment.①:In this experiment, the Strain Gauge measures the strain in micro units. Explain one possible error factor when applying a load by hanging a weight on the material with the strain gauge attached. (Hint: It is easy to shake by hanging the weight using a thread)①:

The gradient of the elastic region of a stress strain curve is directly related to the Young's Modulus/Nm-2 the failure strength N the elastic limit (Nm-²) the ductile limit %

In stress and strain diagram for a perfectly ductile material, the yield strength, and ultimate tensile strength are well defined Select one: O True O False