Answer Happy

An open thin-walled tube, of 500 mm length, has a wall thickness of 1.0 mm and an initial mean diameter of 40 mm. The plastic stress-strain curve for the material is given by: o = 200 £0.4 MPa. The tube is subject to axial load F and internal pressure P, so that the stress ratio e/oz = 2.5 at all times. The plastic deformation continues until the mean diameter is increased to 50 mm. Ignoring Or, determine: The true strain components at the end of the deformation process b. The equivalent strain at the end of the deformation process The equivalent stress at the end of the deformation process d. The final dimensions of the tube The final axial load and internal pressure. Assume that the axial stress is not affected by the internal pressure (open thin-walled tube). a. c. e.