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Problem 2: A horizontal bar is loaded with axial loads at points B, C, and D,...
2.3-5 A vertical bar is loaded with axial loads at points B, C, and D, as...
2.3-5 A vertical bar is loaded with axial loads at points B, C, and D, as shown in the figure. The bar is made of steel with a modulus of elasticity E = 29,000 ksi. The bar has a cross-sectional area of 8.24 in?. Calculate the displacements at points B, C, and D. Ignore the weight of the bar. Pb = 50 lb L1 = 20 in. L2= 20 in. Pc = 100 lb L3 = 40 in. Pp =...
Numbers: 1-7 1. During a stress-strain test, the unit deformation at a stress of 5,000 psi...
Numbers: 1-7
1. During a stress-strain test, the unit deformation at a stress of 5,000 psi was observed to be 0.000167 in./in. and at a stress of 20,000 psi it was 0.000667 in./in. If the proportional limit is 30,000 psi, what is the modulus of elasticity? What is the stress corresponding to a strain of 0.0002 in./in.? Would these results be valid if the proportional limit were 18,000 psi? Explain. 2. A steel wire 30 feet long, hanging vertically, supports...
A bar ABCD with varying cross section and subjected to axial loads is shown schematically in...
A bar ABCD with varying cross section and subjected to axial loads is shown schematically in Figure Q3. Take modulus of elasticity of bar as 202 GPa. The length of each section L1 = 111 mm; L2 = 205 mm; and L3 = 451 mm. The cross sectional dimensions are as follows: Section 1 is square with side 49 mm, Section 2 is circular with diameter 79 mm and Section 3 is circular with diameter 32 mm. The forces are...
Question 6 5 points Save Answer The bar ABC is supported by a pin at A...
Question 6 5 points Save Answer The bar ABC is supported by a pin at A and a steel wire at B. The 36-lb horizontal force is applied at C. The cross-sectional area of the wire is 0.0025 in2 and the E of steel is 29 x 106. What is the axial load in Ibs acting in wire BD? Use two decimal places. с 36 16 4 ft 5 ft DI B 6 ft
2.4-15 The aluminum and steel pipes shown in the figure are fastened to rigid supports at...
2.4-15 The aluminum and steel pipes shown in the figure are fastened to rigid supports at ends A and B and to a rigid plate Cat their junction. The aluminum pipe is twice as long as the steel pipe. Two equal and symmetrically placed loads P act on the plate at C (a) Obtain formulas for the axial stresses a, and o in the aluminum and steel pipes, respectively (b) Calculate the stresses for the following data: P 12 kips,...
The bar below has an area of 1 square inch and is acted upon by the...
The bar below has an area of 1 square inch and is acted upon by the forces shown. Determine the elongation of the section of the bar between points C and D. Take the modulus of elasticity of steel to be 29 x 106 psi, 10 pts. 1. 10,000 lb 2000 lb 9000 1b 3000 lb 2" 3' 4'
A system of bars is loaded by axial loads as shown. Determine: a) The normal stress...
A
system of bars is loaded by axial loads as shown. Determine:
a) The normal stress in each bar
b) The deflection of point D with respect to point A
(25 pts.) A system of bars is loaded by axial loads as shown. Determine: the normal stress in each bar the deflection of point D with respect to point A. oads: F1 = 45 (kips), F2 = 20 (kips), F3 = 10 (kips) The normal stress: BAR AB = (ksi)...
Bars A and B in the mechanism shown are made of steel with a modulus of...
Bars A and B in the mechanism shown are made of steel with a modulus of elasticity E = 200 GPa, a cross-sectional area of A = 100 mm?, and a length L = 2.5 m. The applied force F = 10 kN. (a) Write the equations of equilibrium for the horizontal bar. (b) Determine the forces in bars A and B. (c) Find the axial stress in bars A and B. to 2.0 m 3.0 m ** 1.5 m...
The aluminum and steel pipes shown in the figure are fastened to rigid supports at ends...
The aluminum and steel pipes shown in the figure are fastened to rigid supports at ends A and B and to a rigid plate C at their junction. The aluminum pipe is twice as long as the steel pipe. Two equal and symmetrically placed loads P act on the plate at C. Calculate the stress σα (psi) in the aluminum for the following data: P-15 k, cross-sectional area of aluminum pipe A,- 10 in2, cross-sectional area of steel pipe A,...
A system of bars is loaded by axial loads as shown. Determine: a) the normal stress...
A system of bars is loaded by axial loads as shown.
Determine:
a) the normal stress in each bar
b) the deflection of point D with respect to point A.
Loads: F1 = 45 (kips), F2 = 24 (kips), F3 = 14
(kips)
The normal stress:
BAR AB = _____(ksi)
BAR BC = _____(ksi)
BAR CD = _____ (ksi)
The axial deflection:
BAR AB = _____ (in.)
BAR BC= _____ (in.)
BAR CD = _____ (in.)
The deflection of point...
2.3-5 A vertical bar is loaded with axial loads at points B, C, and D, as shown in the figure. The bar is made of steel with a modulus of elasticity E = 29,000 ksi. The bar has a cross-sectional area of 8.24 in?. Calculate the displacements at points B, C, and D. Ignore the weight of the bar. Pb = 50 lb L1 = 20 in. L2= 20 in. Pc = 100 lb L3 = 40 in. Pp =...
Numbers: 1-7
1. During a stress-strain test, the unit deformation at a stress of 5,000 psi was observed to be 0.000167 in./in. and at a stress of 20,000 psi it was 0.000667 in./in. If the proportional limit is 30,000 psi, what is the modulus of elasticity? What is the stress corresponding to a strain of 0.0002 in./in.? Would these results be valid if the proportional limit were 18,000 psi? Explain. 2. A steel wire 30 feet long, hanging vertically, supports...
A bar ABCD with varying cross section and subjected to axial loads is shown schematically in Figure Q3. Take modulus of elasticity of bar as 202 GPa. The length of each section L1 = 111 mm; L2 = 205 mm; and L3 = 451 mm. The cross sectional dimensions are as follows: Section 1 is square with side 49 mm, Section 2 is circular with diameter 79 mm and Section 3 is circular with diameter 32 mm. The forces are...
Question 6 5 points Save Answer The bar ABC is supported by a pin at A and a steel wire at B. The 36-lb horizontal force is applied at C. The cross-sectional area of the wire is 0.0025 in2 and the E of steel is 29 x 106. What is the axial load in Ibs acting in wire BD? Use two decimal places. с 36 16 4 ft 5 ft DI B 6 ft
2.4-15 The aluminum and steel pipes shown in the figure are fastened to rigid supports at ends A and B and to a rigid plate Cat their junction. The aluminum pipe is twice as long as the steel pipe. Two equal and symmetrically placed loads P act on the plate at C (a) Obtain formulas for the axial stresses a, and o in the aluminum and steel pipes, respectively (b) Calculate the stresses for the following data: P 12 kips,...
The bar below has an area of 1 square inch and is acted upon by the forces shown. Determine the elongation of the section of the bar between points C and D. Take the modulus of elasticity of steel to be 29 x 106 psi, 10 pts. 1. 10,000 lb 2000 lb 9000 1b 3000 lb 2" 3' 4'
A
system of bars is loaded by axial loads as shown. Determine:
a) The normal stress in each bar
b) The deflection of point D with respect to point A
(25 pts.) A system of bars is loaded by axial loads as shown. Determine: the normal stress in each bar the deflection of point D with respect to point A. oads: F1 = 45 (kips), F2 = 20 (kips), F3 = 10 (kips) The normal stress: BAR AB = (ksi)...
Bars A and B in the mechanism shown are made of steel with a modulus of elasticity E = 200 GPa, a cross-sectional area of A = 100 mm?, and a length L = 2.5 m. The applied force F = 10 kN. (a) Write the equations of equilibrium for the horizontal bar. (b) Determine the forces in bars A and B. (c) Find the axial stress in bars A and B. to 2.0 m 3.0 m ** 1.5 m...
The aluminum and steel pipes shown in the figure are fastened to rigid supports at ends A and B and to a rigid plate C at their junction. The aluminum pipe is twice as long as the steel pipe. Two equal and symmetrically placed loads P act on the plate at C. Calculate the stress σα (psi) in the aluminum for the following data: P-15 k, cross-sectional area of aluminum pipe A,- 10 in2, cross-sectional area of steel pipe A,...
A system of bars is loaded by axial loads as shown.
Determine:
a) the normal stress in each bar
b) the deflection of point D with respect to point A.
Loads: F1 = 45 (kips), F2 = 24 (kips), F3 = 14
(kips)
The normal stress:
BAR AB = _____(ksi)
BAR BC = _____(ksi)
BAR CD = _____ (ksi)
The axial deflection:
BAR AB = _____ (in.)
BAR BC= _____ (in.)
BAR CD = _____ (in.)
The deflection of point...
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