Quiz 6 potential problems ChE 350 sp10

Quiz 6 potential problems ChE 350 sp10 - Sample question...

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Unformatted text preview: Sample question for ChE 350 Spring 2010 Quiz 6 Name:________________________ 1 1. Below is a table listing the mechanical properties of bone. (a) Plot the stress-strain curves for the bone of a 20-30 year old and a 60-70 year old. (make sure you label your axes and provide units for the quantities) (b) What is the elastic modulus of bone (provide for the 20-30 year old)? ________________ (c) How much tougher are the bones of the 20-30 yr old? (give a percentage) ____________ (d) On the same plot, sketch the stress-strain curve for aramid fiber reinforced epoxy. (It is a brittle material with a tensile strength of 1.38 GPa and a percent elongation of 1.8%). Sample question for ChE 350 Spring 2010 Quiz 6 Name:________________________ 2 2. Sketch a generic stress-strain curve for a material with: (a) a modulus of elasticity of 69 GPa (b) a yield strength of 35 MPa (c) a tensile strength of 90 MPa (d) a ductility of 40% EL 3. A bar of steel alloy that exhibits the stress-strain behavior shown in Figure 6.21 is subjected to 3....
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Quiz 6 potential problems ChE 350 sp10 - Sample question...

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