For the problem in Question 2

a) Draw the Mohr 3D using millimetre paper(20 points)

b) Show the shear stresses (T12, T23, T13) and the maximum shear stress Tax on Mohr 3D graph (10 points)

c) Show the principal stresses (01, 02, 03) on the graph (10 points)

Please note that you should use millimetre paper for the graphs and show your calculations related to Question 2 on this PDF file Figure above depicts a point III a loaded machine base subjected to the 3D stresses. Take A = 20 MPa, B = 65 MPa, C = 95 MPa, D =25 MPa,

Note that you should use the formula:0³ - 1₁0² + 1₂0 - 13 =

1- Find I₁= MPa

2- Find I₂ = MPa²

3- Find I3= MPa³

4- Find sigma 1 =MPa

5- Find sigma 2 =MPa

6- Find sigma 3 =MPa Explain the following items by writing a paragraph and drawing figures

a) Ductile material,

b) Brittle material

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