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a steel bar of 25mm diameter and 122m long absorbs
QUESTION 2 A steel bar of...
A 25mm diameter steel rod 1.5m long is being used in a rigid structure. For this...
A 25mm diameter steel rod 1.5m long is being used in a rigid structure. For this steel the Ultimate Tensile Stress is 410 MPa Young’s Modulus is 200 GPa The rod is to be subjected to a tension load of 40 kN. Design requirements are that the rod cannot extend by more than 0.5 mm and that there is a Factor of Safety of 5 for the tensile stress. Determine whether or not the rod is adequate for the task:...
1. A closely coiled helical spring made of 15 mm diameter steel wire has 15 coils...
1. A closely coiled helical spring made of 15 mm diameter steel
wire has 15 coils of 110 mm mean diameter. The spring is subjected
to an axial load of 180 N. Calculate the maximum shear stress
induced in the spring. Assume modulus of rigidity is 78 GPa.
2. A solid circular bar ABC consists of two segments, as shown
in the figure. One segment has diameter d1= 65 mm and
length L1 = 1.54 m; the other segment has...
P.1.9. A bar of mild steel has a diameter of 75 mm and is placed inside...
P.1.9. A bar of mild steel has a diameter of 75 mm and is placed inside a hollow aluminum cylinder of internal diameter 75 mm and external diameter 100 mm; both bar and cylinder are the same length. The resulting composite bar is subjected to an axial compressive load of 1000 KN. If the bar and cylinder contract by the same amount, calculate the stress in each. The temperature of the compressed composite bar is then reduced by 150°C but...
6. A rod pof steel is l=12_ cm long and has a d= 0.6 mm diameter....
6. A rod pof steel is l=12_ cm long and has a d= 0.6 mm diameter. A P= 16 kN load pulls on each end of the bar. Given the strain along the bar El= 0.03, and Poisson's ratio of v=0.21 : (20%) .. Р Р a) the stress exerted on the rod o? b) the modulus of elasticity, E? c) the elongation of the bar, Al? d) the strain along the lateral direction, Edia? e) the change of diameter...
Q2. A hollow mild steel column has 25mm thickness and is 20cm in external diameter with...
Q2. A hollow mild steel column has 25mm thickness and is 20cm in external diameter with 6m length. The modulus value for mild steel is 1.2 x 106 N/mm² and this column is hinged at both ends find the Euler's crushing load and compare the load with the crushing load given by the Rankine's formula Determine for what length these two formulae will give the same crushing load? Finally Calculate the critical stresses for the series of strut having slenderness...
Under an applied axial load of 3,806 kN, the diameter of a bar decreases by 0.23...
Under an applied axial load of 3,806 kN, the diameter of a bar decreases by 0.23 mm from an original diameter of 149 mm. Poisson's ratio for the bar is v= 0.37. Determine the elastic modulus of the bar. Give your answer in GPa.
3. A steel bar having a diameter of 1 inch is being loaded as shown below....
3. A steel bar having a diameter of 1 inch is being loaded as shown below. Assume the width and diameters of the collars are negligible. The steel's elastic modulus E = 29,000 ksi. 3000 lb 9000 lb --8000 lb - 4000 lb - 36 in. — 36 in 36 in. (a) (4 points) the maximum axial stress within the bar (also indicate it is within which section and if it's tension or compression) (6) (3 points) determine the total...
Due to the operational conditions and temperature gradient, a 95 mm diameter, 1.75 m long steel...
Due to the operational conditions and temperature gradient, a 95 mm diameter, 1.75 m long steel rod within a machine assembly is subjected to a combination of tensile loading of 190 N and thermal loading which imposes a longitudinal force of 244 N. The total loading results in an even distribution of forces on the body of the rod causing it to change its dimensions by increasing 0.45 mm in length at both ends and decreasing by 0.0135 mm at...
Due to the operational conditions and temperature gradient, a 95 mm diameter, 1.75 m long steel r...
Due to the operational conditions and temperature gradient, a 95 mm diameter, 1.75 m long steel rod within a machine assembly is subjected to a combination of tensile loading of 190 N and thermal loading which imposes a longitudinal force of 244 N. The total loading results in an even distribution of forces on the body of the rod causing it to change its dimensions by increasing 0.45 mm in length at both ends and decreasing by 0.0135 mm at...
Q1. A circular rod of 12 mm diameter was tested for tension. The total elongation on...
Q1. A circular rod of 12 mm diameter was tested for tension. The total elongation on a 300 mm length was 0.22 mm under a tensile load of 17 KN. Find the value of E. (2.5 Marks) Answer: Q2. A prismatic bar has a cross section of 25 mm x 50 mm and a length of 2m under an axial force of 90 KN. The measured elongation of the bar is 1.5 mm. Compute the tensile stress and strain in...
1. A closely coiled helical spring made of 15 mm diameter steel
wire has 15 coils of 110 mm mean diameter. The spring is subjected
to an axial load of 180 N. Calculate the maximum shear stress
induced in the spring. Assume modulus of rigidity is 78 GPa.
2. A solid circular bar ABC consists of two segments, as shown
in the figure. One segment has diameter d1= 65 mm and
length L1 = 1.54 m; the other segment has...
P.1.9. A bar of mild steel has a diameter of 75 mm and is placed inside a hollow aluminum cylinder of internal diameter 75 mm and external diameter 100 mm; both bar and cylinder are the same length. The resulting composite bar is subjected to an axial compressive load of 1000 KN. If the bar and cylinder contract by the same amount, calculate the stress in each. The temperature of the compressed composite bar is then reduced by 150°C but...
6. A rod pof steel is l=12_ cm long and has a d= 0.6 mm diameter. A P= 16 kN load pulls on each end of the bar. Given the strain along the bar El= 0.03, and Poisson's ratio of v=0.21 : (20%) .. Р Р a) the stress exerted on the rod o? b) the modulus of elasticity, E? c) the elongation of the bar, Al? d) the strain along the lateral direction, Edia? e) the change of diameter...
Q2. A hollow mild steel column has 25mm thickness and is 20cm in external diameter with 6m length. The modulus value for mild steel is 1.2 x 106 N/mm² and this column is hinged at both ends find the Euler's crushing load and compare the load with the crushing load given by the Rankine's formula Determine for what length these two formulae will give the same crushing load? Finally Calculate the critical stresses for the series of strut having slenderness...
Under an applied axial load of 3,806 kN, the diameter of a bar decreases by 0.23 mm from an original diameter of 149 mm. Poisson's ratio for the bar is v= 0.37. Determine the elastic modulus of the bar. Give your answer in GPa.
3. A steel bar having a diameter of 1 inch is being loaded as shown below. Assume the width and diameters of the collars are negligible. The steel's elastic modulus E = 29,000 ksi. 3000 lb 9000 lb --8000 lb - 4000 lb - 36 in. — 36 in 36 in. (a) (4 points) the maximum axial stress within the bar (also indicate it is within which section and if it's tension or compression) (6) (3 points) determine the total...
Q1. A circular rod of 12 mm diameter was tested for tension. The total elongation on a 300 mm length was 0.22 mm under a tensile load of 17 KN. Find the value of E. (2.5 Marks) Answer: Q2. A prismatic bar has a cross section of 25 mm x 50 mm and a length of 2m under an axial force of 90 KN. The measured elongation of the bar is 1.5 mm. Compute the tensile stress and strain in...
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