Explain stress-strain relationship for mild steel. Discuss in brief about the elastoplastic behaviour in axial loading.
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A: αal=12.8×10-6/°Fαbr=9.6×10-6/°Fαst=9.6×10-6/°FEal=10.6×106 lb/inEbr=15×106 lb/inEst=128×106 lb/in
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A: Given data: Yield stress = 250 MPa E= 200 GPa
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Explain stress-strain relationship for mild steel. Discuss in brief about the elastoplastic behaviour in axial loading.
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- A tension stress of 70 ksi was applied on a 12-in. long steel specimen. Determine the resultant elongation assuming that the deformation is entirely elastic. Assume a Young’s modulus of 30 * 106 psi.Sketch a sample stress-strain behavior of steel and identify different levels of strength.An aluminum tube is fastened between a steel rod and a bronze rod as shown. Axial loads are applied at the positions indicated. For Bronze: Allowable stress = 120 MPa, EB = 83,000 MPa For Aluminum: Allowable stress = 120 Mpa, EA = 70,000 MPa For Steel: Allowable stress = 120 MPa, Es = 200,000 MPa Assume that the assembly is suitably braced to prevent buckling. Maximum overall deformation should not exceed 2mm. a) Give the value of the force acting on the bronze so as not to exceed allowable stresses and deformation. b) Give the value of the force acting on the aluminum so as not to exceed its allowable stresses and deformation. c) Give the value of the force acting on the steel so as not to exceed its allowable stresses and deformation.
- Draw a typical stress–strain relationship for steel subjected to tension. On the graph, show the modulus of elasticity, the yield strength, the ultimatstrength, and the rupture stress.A 31 mm radius Steel is subjected to tensile test. Determine its yield and ultimate load it can carry in KN when the steel grade is 60 and 40. Determine also it's elongation using the stresses if the modulus of elasticity of steel is 231 GPa. Determine also the weight if the length is 31 m and 03 m.What is the value of reduction factor of the beam, if the stress in the steel is 400 MPa, and the Modulus of Elasticity of the Steel is 200,000 MPa.
- An aluminum alloy cylinder with a diameter of 76 mm and a height of 150 mm. is subjected to a compressive load of 220 kN. Assume that the mate-rial is within the elastic region and a modulus of elasticity of 75 GPa. a. What will be the lateral strain if Poisson’s ratio is 0.33?b. What will be the diameter after load application?c. What will be the height after load application?Draw a typical stress-strain behaviour of steel subjected to tension. On the graph, showthe modulus of elasticity, the yield strength, the ultimate stress and the rupture stress.A 8 mm radius Steel is subjected to tensile test. Determine its yield and and ultimate load it can carry in kN when the steel grade is 60 and 40. Determine also its elongation using the stresses if the modulus of elasticity of steel 218 GPa. Determine also the weight if the length is 8 m and 18 m.Hint: There are two 8 mm radius Steel.
- As shown in the figure below, a bronze bar is affixed between a steel bar and an aluminum bar. Axial loads are applied at the positions indicated. If the largest value of P that will not exceed an overall deformation of 4.0 mm, or the following stresses: 150 MPa in the steel, 130 MPa in the bronze, and 90 MPa in the aluminum, determine the stress in the bronze. Assume that the assembly is suitably braced to prevent buckling. Use Est = 200 GPa, Eal = 70 GPa, and Ebr = 83 GPa. (The correct answer is 71.36 MPa. Can you show the solution? Thank you!)PROBLEM 1) An aluminum bar carries the axial loads at the positions shown. If E=70GPA, compute the total deformation of the bar. Assume that the bar is suitably braced to prevent buckling. 0.4m D 10KN 0.8m 0.4m B 5KN 0.6m AL 20KN What is the deformation &pE in mm? A=800 mm² A=1,200 mm²The failure stress of a homogeneous steel bar having a diameter of 10 mm is 250 MPa. Using a factor of safety of 2.0, calculate the maximum load in N that the bar can support.