A Charpy V Notch test was conducted for a steel specimen. The average values of the test results at four different test temperatures were found to be 15 J at -45°C21 J at -18°C60 J at 5°C75 J at 40°CA bridge will be located in a region where specifications require a minimum of 35 J fracture toughness at 0°C for welded fracture-critical members. If the bridge contains a welded flange in a fracture-critical member, does the steel have adequate Charpy V notch fracture toughness to be used for this bridge?Show your supporting calculations.

For the tensile steel ratio P 0.0376, yield strength of reinforcing steel fy 500 MPa, fe 40 MPa, find fs, which is the maximum tensile stress permitted in the reinforcement immediately after the formation of a crack. AS 3600- 2009 Explain steps

Q3: For the assembly shown in Fig. Q3. Axial loads are applied at the positions indicated. Find the largest value of P that will not exceed an overall deformation of 3.0 mm, or the following stresses: 140 MPa in the steel, 120 MPa in the bronze, and 80 MPa in the aluminum. Steel Bronze Aluminum B C A D P ЗР 4P +2P | 1m 2m 1.5m A= 480 mm? A= 650 mm? A= 320 mm? E= 200 GPa E= 83 GPa E= 70 GPa Fig. Q3

A certain steel has proportionality limit of 300 N/mm² in simple tension. Under a Three Dimensional Stress System, the principal stresses are 150 N/mm² (Tensile), 75 N/mm² (Tensile) and 30 N/mm² (Compressive), μ = 0.3. The factor of safety according to maximum shear stress theory would be

Question.

A brass specimen of the circular cross-section is fractured at 151 kN force and the final length of the specimen at fracture is 48 mm. The fracture strength of the specimen is found to be 72 kN/mm?. The percentage of elongation of the specimen is 44 %. Determine the following (i) Diameter of the specimen, ii) Initial length of the specimen, iii) Stress under an elastic load of 15 kN, iv) Young's Modulus if the elongation is 1.5 mm at 15 kN (v) Final diameter if the percentage of reduction in area is 21 %. ( Initial Cross-sectional Area (in mm?) The Diameter of the Specimen (in mm) Initial Length of the Specimen (in mm) Stress under the elastic load (in N/mm?) Young's Modulus of the Specimen (in N/mm2) Final Area of the Specimen at Fracture (in mm) Final Diameter of the Specimen after Fracture (in mm)

I need the answer to the question in reinforced concrete

A steel specimen is tested in tension. The specimen is 1" wide by 0.5" thick in the test region. By monitoring the stresses from the testing machine, it was found that the specimen yielded at a stress of 72 ksi and fractured at 96 ksi. (a). Determine the tensile loads at yield and at fracture

(b) An aluminium plate (100 mm width x 300 mm height x 4 mm thick) with a centre-crack is subjected to a mode-l service load of 40 kN. Assume that the fracture toughness of the material is 24 MPa Vm and Y-1.0. (ii) What is the safety factor on crack length? Assume that the yield strength of aluminium is 425 MPa.

Describe the type of fractures expected when pure aluminium and steel with 1.15%C specimens are loaded in tension to failure. Comment on the differences expected.