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Question 7 A delta strain gauge rosette (60° angles between gauges) bonded to a magnesium alloy...
A strain gauge rosette attached to an aircraft component fabricated from thin sheet material recorded the...
A strain gauge rosette attached to an aircraft component fabricated from thin sheet material recorded the following strains: E = 550 JE E45 = -450 ME €90 = -150 ue The thin sheet material properties are: E = 70 GPS v = 0.3 (a) Determine the state of stress in the 0°-90° axis system at the strain gauge location. [11 marks) (b) Determine the principal stresses at the strain gauge location and the maximum shear stress. [6 marks) (c) With...
1) An element in plane strain has a 60° strain rosette that is 150 from the...
1) An element in plane strain has a 60° strain rosette that is 150 from the x axis. Use Mohr's circle to determine. E = 29,000 ksi G= 11,200 ksi &=-.0015 E, = .004 E = -0025 a) The principal strains and maximum shear strain. b) Determine the location of the principal strains. c) Determine the stresses from the strains given d) Determine the stresses from the principal strains
Each line in Table 1 represents a set of data corresponding to a given plane stress...
Each line in Table 1 represents a set of data corresponding to a given plane stress condition. The first three columns are strains (in microstrain) obtained using a three-element rectangular rosette. The final two items are material properties. For a selected set of data, determine the following: (a) The principal strains (b) The principal stresses (c) The maximum shear stress (d) Principal directions referred to the axis of gage a Also, sketch the following (e) Mohr's circles for stress (f)...
Asap 1. The bracket is made of steel (Young's modulus 200 GPa; Poisson's ratio 0.3). When the force P is applied to the bracket, the gages in the strain rosette at point A have the followi...
Asap
1. The bracket is made of steel (Young's modulus 200 GPa; Poisson's ratio 0.3). When the force P is applied to the bracket, the gages in the strain rosette at point A have the following readings: E.-60 μ . Ep 135 μ l, and E.-264 μ (a) Determine the shear strain at point A. (b) Determine the orientation of the principal plane, the in-plane principal strains, the maximum in-plane shear strain, and the average in-plane normal strain. Determine the...
Question 4 - (25 marks) 4a) The 60° strain rosette, shown in Figure 6, -is mounted...
Question 4 - (25 marks) 4a) The 60° strain rosette, shown in Figure 6, -is mounted on a beam. The following readings are obtained from each gauge: Ea= 250 u ; Eb= -400 u ; Ec= 280 u Determine:- (9) i. The in-plane principal strains and their orientation, and ii. The maximum in-plane shear strain and the average normal strain. of the principal plane. (6) b a 60° 60° 60°
Part A - Question 3 (Total Marks for Part A - Question 3:20) A steel beam...
Part A - Question 3 (Total Marks for Part A - Question 3:20) A steel beam in an industrial structure is part of a complicated frame that was difficult to analyse. Using a rectangular strain gauge rosette, the actual strains at point A have been recorded while being subjected to test loads. It is necessary to determine the normal stresses and shear stresses in the actual beam subject to the test loads to check whether the stresses assumed in the...
An existing steel beam is in use in a building.
An existing steel beam is in use in a building. Using a rectangular strain gauge rosette, the actual strains at point A have been recorded while being subjected to test loads which simulate crowd loading. It is necessary to calculate the principal stresses to check whether the beam is safe for its current purpose (ie: assess whether the stresses determined are less than the maximum permissible stresses) Figure 4: Strain gauge rosette location and recorded strains In this case it is reasonable...
A delta strain rosette was mounted on a thin-walled steel cylinder subjected to internal pressure. At...
A delta strain rosette was mounted on a thin-walled steel cylinder subjected to internal pressure. At a particular pressure the gauges give the following readings: e a = 350 x 10-6 ( along the x-axis, 00 ), e b = - 100 x 10-6 ( 600 ) and e c = -100 x 10-6 ( at 1200) Assume E = 200 GPa , n = 0.3. The resulting principal stresses are:
End of Semester 1, 2018 STEN2002 Civil Engineering Materials (Total Mark for Question 4: 18) Part...
End of Semester 1, 2018 STEN2002 Civil Engineering Materials (Total Mark for Question 4: 18) Part A - Question 4 7 complicated frame that was difficult to analyse Using a rectangular strain gauge rosette, the actual strains at point A have been recorded while being subjected to test loads. It is necessary to determine the principal stresses and shear stresses in the actual beam subject to the test loads to check whether the stresses assumed in the design of the...
Question 2 I (a) Using a 459 strain gauge rosette placed on a mild steel structure,...
Question 2 I (a) Using a 459 strain gauge rosette placed on a mild steel structure, the following strains were established from the measurements taken:£x = 75x10", Eyy =-115x10-6 = 210 10-6 and Yxy yy (i) Determine the corresponding normal stresses Ox and and shear stress txy. For mild steel, use Young's modulus E= 205 GPa , Poisson's ratio v=0.3 and shear modulus G = 78.8 GPa. [6 marks] (ii) Using the values obtained in (i), determine the principal stresses...
A strain gauge rosette attached to an aircraft component fabricated from thin sheet material recorded the following strains: E = 550 JE E45 = -450 ME €90 = -150 ue The thin sheet material properties are: E = 70 GPS v = 0.3 (a) Determine the state of stress in the 0°-90° axis system at the strain gauge location. [11 marks) (b) Determine the principal stresses at the strain gauge location and the maximum shear stress. [6 marks) (c) With...
1) An element in plane strain has a 60° strain rosette that is 150 from the x axis. Use Mohr's circle to determine. E = 29,000 ksi G= 11,200 ksi &=-.0015 E, = .004 E = -0025 a) The principal strains and maximum shear strain. b) Determine the location of the principal strains. c) Determine the stresses from the strains given d) Determine the stresses from the principal strains
Each line in Table 1 represents a set of data corresponding to a given plane stress condition. The first three columns are strains (in microstrain) obtained using a three-element rectangular rosette. The final two items are material properties. For a selected set of data, determine the following: (a) The principal strains (b) The principal stresses (c) The maximum shear stress (d) Principal directions referred to the axis of gage a Also, sketch the following (e) Mohr's circles for stress (f)...
Asap
1. The bracket is made of steel (Young's modulus 200 GPa; Poisson's ratio 0.3). When the force P is applied to the bracket, the gages in the strain rosette at point A have the following readings: E.-60 μ . Ep 135 μ l, and E.-264 μ (a) Determine the shear strain at point A. (b) Determine the orientation of the principal plane, the in-plane principal strains, the maximum in-plane shear strain, and the average in-plane normal strain. Determine the...
Question 4 - (25 marks) 4a) The 60° strain rosette, shown in Figure 6, -is mounted on a beam. The following readings are obtained from each gauge: Ea= 250 u ; Eb= -400 u ; Ec= 280 u Determine:- (9) i. The in-plane principal strains and their orientation, and ii. The maximum in-plane shear strain and the average normal strain. of the principal plane. (6) b a 60° 60° 60°
Part A - Question 3 (Total Marks for Part A - Question 3:20) A steel beam in an industrial structure is part of a complicated frame that was difficult to analyse. Using a rectangular strain gauge rosette, the actual strains at point A have been recorded while being subjected to test loads. It is necessary to determine the normal stresses and shear stresses in the actual beam subject to the test loads to check whether the stresses assumed in the...
End of Semester 1, 2018 STEN2002 Civil Engineering Materials (Total Mark for Question 4: 18) Part A - Question 4 7 complicated frame that was difficult to analyse Using a rectangular strain gauge rosette, the actual strains at point A have been recorded while being subjected to test loads. It is necessary to determine the principal stresses and shear stresses in the actual beam subject to the test loads to check whether the stresses assumed in the design of the...
Question 2 I (a) Using a 459 strain gauge rosette placed on a mild steel structure, the following strains were established from the measurements taken:£x = 75x10", Eyy =-115x10-6 = 210 10-6 and Yxy yy (i) Determine the corresponding normal stresses Ox and and shear stress txy. For mild steel, use Young's modulus E= 205 GPa , Poisson's ratio v=0.3 and shear modulus G = 78.8 GPa. [6 marks] (ii) Using the values obtained in (i), determine the principal stresses...
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