MSE_2610_HW_1

# MSE_2610_HW_1 - MSE 2610 Introduction to the Mechanical...

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MSE 2610 Introduction to the Mechanical Properties of Materials Fall 2008 Homework Assignment #1 DUE: 11 September 2008 1.) Given the graph below provide the following information: Stress ( σ ) Strain ( ε ) a.) Which material is the stiffest? Explain b.) Which material is most ductile? Explain. c.) Which material is most brittle? Explain. d.) Which material is strongest? Explain. e.) Which material is toughest? Explain. 2.) A tensile load of 5000 kg is placed along the long axis of the cylinder at right. The bar is made from ASTM 1020 steel with a Young’s Modulus of 207 GPa, a yield strength of 300 MPa, and a Poisson’s ratio of 0.29. 0m 10 cm a.) Calculate the normal stress on the bar in MPa. b.) Assign a coordinate system, draw and label the principal stress state for an arbitrary point in the bar. c.) What are the normal and shear stresses on a plane with a normal vector 58 degrees from the tensile axis ?

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MSE_2610_HW_1 - MSE 2610 Introduction to the Mechanical...

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