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Problem 1 An axially loaded bar shown in Fig. 1 has a stress concentration factor of...
A system of bars is loaded by torqes as shown. Determine: a) the shear stress in...
A system of bars is loaded by torqes as shown. Determine:
a) the shear stress in each bar.
b) the twist of pont D with respect to point a. Assume that all
three bars have a modulus of rigidity of 11,500 ksi.
External Torques:
T1 = 575 (lb-in.)
T2 = 500 (lb-in.)
T3 = 1100 (lb-in.)
Shear Stress:
The shear stress in bar AB is _____ (psi)
The shear stress in bar BC is ______ (psi)
The shear stress in...
Please show all work for each step taken. Thank You. y loaded rod shown with area-2 in2, modulus E-10E6 psi, lengths: LAB-6 in and Lac- 12 lb and Fc 40 lb find the axial stress in sections AB and BC...
Please show all work for each step taken. Thank You.
y loaded rod shown with area-2 in2, modulus E-10E6 psi, lengths: LAB-6 in and Lac- 12 lb and Fc 40 lb find the axial stress in sections AB and BC of the rod and the deflection at point C (2 points each).
y loaded rod shown with area-2 in2, modulus E-10E6 psi, lengths: LAB-6 in and Lac- 12 lb and Fc 40 lb find the axial stress in sections AB...
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...
Problem 3 Statically Indeterminate Axially Loaded Members (25pts) The assembly shown consists of rigid bar ABC,...
Problem 3 Statically Indeterminate Axially Loaded Members (25pts) The assembly shown consists of rigid bar ABC, two fiber-reinforced plastic (FRP) rods (1) and (3), and FRP post (2). The modulus of elasticity for the FRP is E = 18 GPa. Determine the vertical deflection of joint D relative to its initial position after the 30 kN load is applied. 2.4 m 1.8 m Rigid bar | B |(2) (3) || 3.0 m 3.6 m A = 500 mm? Az= 500...
Problem 1 The machined steel bar shown in the figure undergoes fully reversed axial loading at...
Problem 1 The machined steel bar shown in the figure undergoes fully reversed axial loading at a nominal alternating stress of 30 ksi. 1. Find the safety factor for an infinite life of the bar if the critical section of this filleted bar in tension is assumed at the shoulder fillet. 2. How many cycles of stress can be expected? Given: The corrected endurance limit Se = 35 ksi. Material Ultimate Tensile Strength Sut = 100 ksi. Material Yield Strength...
Question 1: A step round bar as shown is subjected to two concentrated axial loads Fa...
Question 1: A step round bar as shown is subjected to two concentrated axial loads Fa at the section B and Fc at the section C. The material is a ductile material with yield strength Sy and young's modulus E The design control of this component is total actual length Lac. The diameters in the section AB and BC are dAB, and dac. The lengths of the section AB and BC are LAB and LBc. The factor of stress concentration...
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...
The cantilevered bar in the figure is made from a ductile material and is statically loaded with Fy=-200 lbf and Fx = 500 lb. Ignore stress concentration.
The cantilevered bar in the figure is made from a ductile material and is statically loaded with Fy=-200 lbf and Fx = 500 lb. Ignore stress concentration. a. Determine the precise location of the critical stress in element at the cross section at A. b. Sketch the critical stress element and label all the stresses. c. Determine magnitudes and directions for all stresses acting on stress element. d. Show the normal stress distribution at cross-section of A. e. For the design of cantilever bar, recommend...
1. A steel bar is placed between two rigid, unyielding walls, as shown, with only one end attached. The gap is 0.008 inches a. Calculate the temperature to close the gap. b. Calculate the stress...
1. A steel bar is placed between two rigid, unyielding walls, as shown, with only one end attached. The gap is 0.008 inches a. Calculate the temperature to close the gap. b. Calculate the stress developed in the bar when the temperature rises by 100°F c. Calculate the size of the gap if the temperature drops by 70°F. 15.50 answer sheet. L. A 7/8 inch diameter magnesium alloy rod, 14.25 inches long, is subjected to an axial tens Assume a...
S.,kpsi The bar shown in Fig. 6-16 is subjected to a repeated moment 0 <M<1200 lbf...
S.,kpsi The bar shown in Fig. 6-16 is subjected to a repeated moment 0 <M<1200 lbf in. The bar is AISI 4430 steel with Sut = 185 kpsi, Sy=170 kpsi, and Kic=73 kpsiin. Material tests on various specimens of this material with identical heat treatment indicate worst-case constants of C = 3.8(10-1)(in/cycle)/(kpsiVin) and m= 3.0. As shown, a nick of size 0.004 in has been discovered on the bottom of the bar. Estimate the number of cycles of life remaining....
A system of bars is loaded by torqes as shown. Determine:
a) the shear stress in each bar.
b) the twist of pont D with respect to point a. Assume that all
three bars have a modulus of rigidity of 11,500 ksi.
External Torques:
T1 = 575 (lb-in.)
T2 = 500 (lb-in.)
T3 = 1100 (lb-in.)
Shear Stress:
The shear stress in bar AB is _____ (psi)
The shear stress in bar BC is ______ (psi)
The shear stress in...
Please show all work for each step taken. Thank You.
y loaded rod shown with area-2 in2, modulus E-10E6 psi, lengths: LAB-6 in and Lac- 12 lb and Fc 40 lb find the axial stress in sections AB and BC of the rod and the deflection at point C (2 points each).
y loaded rod shown with area-2 in2, modulus E-10E6 psi, lengths: LAB-6 in and Lac- 12 lb and Fc 40 lb find the axial stress in sections AB...
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...
Problem 3 Statically Indeterminate Axially Loaded Members (25pts) The assembly shown consists of rigid bar ABC, two fiber-reinforced plastic (FRP) rods (1) and (3), and FRP post (2). The modulus of elasticity for the FRP is E = 18 GPa. Determine the vertical deflection of joint D relative to its initial position after the 30 kN load is applied. 2.4 m 1.8 m Rigid bar | B |(2) (3) || 3.0 m 3.6 m A = 500 mm? Az= 500...
Problem 1 The machined steel bar shown in the figure undergoes fully reversed axial loading at a nominal alternating stress of 30 ksi. 1. Find the safety factor for an infinite life of the bar if the critical section of this filleted bar in tension is assumed at the shoulder fillet. 2. How many cycles of stress can be expected? Given: The corrected endurance limit Se = 35 ksi. Material Ultimate Tensile Strength Sut = 100 ksi. Material Yield Strength...
Question 1: A step round bar as shown is subjected to two concentrated axial loads Fa at the section B and Fc at the section C. The material is a ductile material with yield strength Sy and young's modulus E The design control of this component is total actual length Lac. The diameters in the section AB and BC are dAB, and dac. The lengths of the section AB and BC are LAB and LBc. The factor of stress concentration...
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...
1. A steel bar is placed between two rigid, unyielding walls, as shown, with only one end attached. The gap is 0.008 inches a. Calculate the temperature to close the gap. b. Calculate the stress developed in the bar when the temperature rises by 100°F c. Calculate the size of the gap if the temperature drops by 70°F. 15.50 answer sheet. L. A 7/8 inch diameter magnesium alloy rod, 14.25 inches long, is subjected to an axial tens Assume a...
S.,kpsi The bar shown in Fig. 6-16 is subjected to a repeated moment 0 <M<1200 lbf in. The bar is AISI 4430 steel with Sut = 185 kpsi, Sy=170 kpsi, and Kic=73 kpsiin. Material tests on various specimens of this material with identical heat treatment indicate worst-case constants of C = 3.8(10-1)(in/cycle)/(kpsiVin) and m= 3.0. As shown, a nick of size 0.004 in has been discovered on the bottom of the bar. Estimate the number of cycles of life remaining....
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