1) A box beam has the following dimensions: h = 500 mm, b = 180 mm, and t = 22 mm. If the yield stress is 270 MPa, what is the yield moment? (Express your answer in kN-m, up to 1 decimal place)   2) A box beam has the following dimensions: h = 500 mm, b = 180 mm, and t = 22 mm. If the yield stress is 270 MPa, what is the shape factor? (Express your answer up to 1 decimal place)

A high-strength steel bar used in a large crane has a diameter d = 3.00 in. (see figure). Ⓡ The steel has a modulus of elasticity E = 29 x 105 psi and Poisson's ratio is y = 0.27. Because of clearance requirements, the diameter of the bar is limited to 3.002 in. when it is compressed by axial forces. What is the largest compressive load Pmax that i permitted? Assume that the material behaves linearly elastically. (Enter the magnitude in lb.) lb

A 42 meter solid shaft is under torsional loading 53 Nm. If in this application, the allowable shear stress for the material is 369 MPa.    Calculate the required minimum diameter of the shaft: _____ mm ( input the value directly from your calculation before rounding it up to an engineering accepted diameter) Pay attention to units, and calculate your answer to one decimal place.

Q5) The wooden block shown in Figure (4) will fail if the shear stress acting along the grain is (3.85 MPa). If the normal stress (d, = 2.8 MPa), determine the necessary compressive stress (a) that will cause failure. Figure (4)

Part A Determine average normal stress. (Figure 1) Express your answer with the appropriate units. Javg = Part B μA Submit Request Answer Value σ1,02= 20 MPa IVD ΑΣΦ11 Units vec ww Determine the principal stress. Enter your answers numerically separated by a comma. ? 80 MPa 30 MPa www MPa

STRAIN

A rectangular plate is subjected to uniform biaxial stress with x = 90 MPa (tension), oy = -20 MPa (compression), and ₂ = 0. The plate has original dimensions 400 X 800 X 200 mm (x X y X z) and is made of steel with E = 200 GPa and v = 0.3. What are the strains Ex, Ey, and Ez?

The solid circular drill rod AB is made of a steel that is assumed to be elastoplastic with τY = 22 ksi and G = 11.2 × 106 psi. Knowing that a torque T = 72 kip·in. is applied to the rod and then removed, determine the maximum residual shearing stress in the rod.       The maximum residual shearing stress in the rod is  ksi.

You must have to draw FBD

Determine (d) variable stress and (e) design factor