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Question One (10 marks) A 45° strain gauge rosette is attached to the outer surface of...
Answers: QUESTION 3 (TZU marks) subjected an internal gauge modulus of elasticity of 210 GPa and...
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QUESTION 3 (TZU marks) subjected an internal gauge modulus of elasticity of 210 GPa and a A closed cylindrical pressure vessel illustrated in the figure below is pressure of 5.0 MPa. The vessel is made of steel with a Poisson's ratio of 0.29. A delta strain gauge rosette, attached to the external surface of a closed cylindrical pressure vessel measures the following strains a 74 x 10-6 10-6 E60 246 x 248 x 10 E120 Determine the strain components...
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...
Question 7 A delta strain gauge rosette (60° angles between gauges) bonded to a magnesium alloy...
Question 7 A delta strain gauge rosette (60° angles between gauges) bonded to a magnesium alloy component, measured microstrain readings of 300, -240 and 60. Determine the principal strains and from them the principal stresses and the maximum shear stress at this point on the component (a) using analytical relationships and (b) by using Mohr's circles for strain and stress. The relevant material properties are: E = 80 x 10°N/m², v=0.3.
please give me a detailed explanation for part C. please only answer if you can help.will rate good answer. 1. A long, mild steel cylindrical pressure vessel with diameter 2 m has an operating pr...
please give me a detailed explanation for part C.
please only answer if you can help.will rate good
answer.
1. A long, mild steel cylindrical pressure vessel with diameter 2 m has an operating pressure of 30 bar and a wall thickness of 30 mm. (a) Calculate the hoop and longitudinal stresses in the cylindrical wall. 13 marks] (b) Determine the safety factor using Tresca's yield criterion 2 marks] (c) A 45° strain gauge rosette is attached to the curved...
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...
Problem 4. An axial strain gauge and a transverse strain gauge are mounted to the top...
Problem 4. An axial strain gauge and a transverse strain gauge are mounted to the top surface of a steel beam that experiences a uniaxial stress of 2222 psi. The gauges are connected to arms1 and 2 of a Wheatstone bridge. With a purely axial load applied, determine the bridge constant for the measurement system. If SE 250 uV and E, -10 V, estimate the average gauge factor of the strain gauges. For this material, Poisson's ratio is 0.3 and...
The strain rosette shown was used to obtain normal strain data at a point on the free surface of a machine component. Given the values εa= -185 με, εb= -150 με, εc= 55 με, E = 10,800 ksi, and v = 0.33...
The strain rosette shown was
used to obtain normal strain data at a point on the free surface of
a machine component. Given the values εa= -185 με, εb= -150 με, εc=
55 με, E = 10,800 ksi, and v = 0.33,
determine
(a) the stress components σx, σy, and τxy at the point.
(b) the principal stresses and the maximum in-plane shear stress at
the point; on paper, show these stresses on an appropriate sketch
that indicates the orientation...
1. A strain gage rosette is an electromechanical device that can measure relative surface elongation on...
1. A strain gage rosette is an electromechanical device that can measure relative surface elongation on three directions. Bonding such a device to the surface of a structure allows determination of normal strain along the gage arms. Such a rosette is mounted on the surface of a stress-free elastic solid as shown at the right. Upon loading, the three gage readings are 30 a30 Ea-300 x 10-6, ε,-400 x 10-6, ε.-100 x 10-6 Assuming the material is steel with E-207...
A strain gauge affixed to the outside of a cylindrical pressure vessel at an angle of...
A strain gauge affixed to the outside of a cylindrical
pressure vessel at an angle of θ = 35° reads ε = 400 μm/m. The
outside diameter of the vessel is 500mm and the wall thickness is 5
mm. If the veseel is constructed of A36 steel, determine the
following:
a) The hoop and longitudinal stresses in the tank.
Hints: To solve you will need to consider the equations for
strain transform and generalized Hooke’s Law. The hoop and
longitudinal...
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...
Answers:
QUESTION 3 (TZU marks) subjected an internal gauge modulus of elasticity of 210 GPa and a A closed cylindrical pressure vessel illustrated in the figure below is pressure of 5.0 MPa. The vessel is made of steel with a Poisson's ratio of 0.29. A delta strain gauge rosette, attached to the external surface of a closed cylindrical pressure vessel measures the following strains a 74 x 10-6 10-6 E60 246 x 248 x 10 E120 Determine the strain components...
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...
Question 7 A delta strain gauge rosette (60° angles between gauges) bonded to a magnesium alloy component, measured microstrain readings of 300, -240 and 60. Determine the principal strains and from them the principal stresses and the maximum shear stress at this point on the component (a) using analytical relationships and (b) by using Mohr's circles for strain and stress. The relevant material properties are: E = 80 x 10°N/m², v=0.3.
please give me a detailed explanation for part C.
please only answer if you can help.will rate good
answer.
1. A long, mild steel cylindrical pressure vessel with diameter 2 m has an operating pressure of 30 bar and a wall thickness of 30 mm. (a) Calculate the hoop and longitudinal stresses in the cylindrical wall. 13 marks] (b) Determine the safety factor using Tresca's yield criterion 2 marks] (c) A 45° strain gauge rosette is attached to the curved...
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...
Problem 4. An axial strain gauge and a transverse strain gauge are mounted to the top surface of a steel beam that experiences a uniaxial stress of 2222 psi. The gauges are connected to arms1 and 2 of a Wheatstone bridge. With a purely axial load applied, determine the bridge constant for the measurement system. If SE 250 uV and E, -10 V, estimate the average gauge factor of the strain gauges. For this material, Poisson's ratio is 0.3 and...
The strain rosette shown was
used to obtain normal strain data at a point on the free surface of
a machine component. Given the values εa= -185 με, εb= -150 με, εc=
55 με, E = 10,800 ksi, and v = 0.33,
determine
(a) the stress components σx, σy, and τxy at the point.
(b) the principal stresses and the maximum in-plane shear stress at
the point; on paper, show these stresses on an appropriate sketch
that indicates the orientation...
1. A strain gage rosette is an electromechanical device that can measure relative surface elongation on three directions. Bonding such a device to the surface of a structure allows determination of normal strain along the gage arms. Such a rosette is mounted on the surface of a stress-free elastic solid as shown at the right. Upon loading, the three gage readings are 30 a30 Ea-300 x 10-6, ε,-400 x 10-6, ε.-100 x 10-6 Assuming the material is steel with E-207...
A strain gauge affixed to the outside of a cylindrical
pressure vessel at an angle of θ = 35° reads ε = 400 μm/m. The
outside diameter of the vessel is 500mm and the wall thickness is 5
mm. If the veseel is constructed of A36 steel, determine the
following:
a) The hoop and longitudinal stresses in the tank.
Hints: To solve you will need to consider the equations for
strain transform and generalized Hooke’s Law. The hoop and
longitudinal...
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...
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