A wide sheet (1 mm thick) of steel is bent elastically to a constant radius of curvature, p 500 mm measured form the axis of bending to the center of the sheet as shown in figure 1. Find the stress in the surface. Assume that there is no net force in the plane of the sheet. Knowing that E 208 GPa, and v 0.3 for steel. 04) a) Figure1 A wide sheet (1 mm thick) of steel is bent elastically...
4. (12 marks) Bead is formed by pushing a 1 mm thick metal sheet in a die. Supposing yield stress Y = 900 MPa and Young's modulus E = 100 GPa, determine the diameter of the die so that the outer bead diameter after unloading from the die is 10 mm. [The answer should be accurate to 2 significant figures.] Figure B4
Question1 A sheet of aluminum alloy that has an ultimate tensile strength of 125 MPa is to be punched. The punch will perform the action of material removal on a 120. mm*2 squared cross sectional area. The punch force is estimated to be 1.35E+04 N. Determine the thickness of the aluminum sheet in mm. Question2 If the bend allowance of a 3.00 mm thick sheet is 18.2 mm. Determine the bending radius in mm if the bending angle is 0.600....
A 20-gage (0.091186 cm) steel sheet is bent to a radius of 1.27 cm. Yield stress (Y) is 275.79 MPa. Calculate (i) the radius of the part after it is bent and (ii) the required bend angle to achieve a 1.57 rad bend after spring back has occurred .You may use E = 199,947.96 MPa. b. Explain why and how various factors influence springback in bending of sheet metals
2-113. Determine the angle e between the edges of the sheet-metal bracket. -400 mm 250 mm 300 mm - 50 mm IN DIE Bd y lang donload- Prob. 2-113 T EST 2-114. Determine the angle between the sides of the triangular plate.
3. A metal sheet is bent into the shape of the parabaloid : = y2 22 where 0 < 1. The mass z2. Find the mass of the resulting metal bowl. (z, y,z) is 8(x,y, z) at = Solution: (25/5+1) 3. A metal sheet is bent into the shape of the parabaloid : = y2 22 where 0
: A metal strip 2 cm wide and 1 mm thick is placed in a magnetic field with B= 1.6 eberm2 such that thefield is normal to the surface of the strip. If a Hall voltage of 22㎶ develops across the strip when a current of 220 A is set up in the strip, find the number of conducting electrons per unit volume in the metal strip?
The mechanical component shown in the diagram is 200 mm wide and 10 mm thick and is made of aluminum that has a yield stress of 240 MPa. Calculate the maximum safe load P that can be applied if the normal stress in the component must not exceed the material’s yield stress. Include a factor of safety of 3. 50 mm 100 mm 80 mm 25-mm radius (typical) 50 mm
mcq A boiler which produces water vapour at atmospheric pressure, has a 2 cm thick , 500 cm2bottom, which is made up of a metal whose K= 400 Wm-1 0C-1. A heating coil of 20 kW supplies heat to the boiler. If no heat is lost to the outside and the latent heat of vaporisation L=2.3 x 106 Jkg-1, find the maximum rate of production of water vapour in kgs-1? (1) 3.07 x 10-1 (2) 8.7 x 10-3 (3) 4.2...
A wire 90.0 mm long is bent in a right angle such that the wire starts at the origin and goes in a straight line to x = 35.0 mm , y = 0, and then in another straight line from x = 35.0 mm , y = 0 to x = 35.0 mm , y = 55.0 mm . The wire is in an external uniform 0.700-T magnetic field in the +z direction, and the current through the wire...