A rectangular strain rosette measures the following strains Ea-3451, ε,-193μ ε,-270μ. What are the principal strains,...
5-13. A rectangular rosette is attached to a steel plate having E 30 106 psi and v-03. The strain measurements are: (a) ε 500 μ¡n./in., ε.-300 μ¡n./in., and -100 μίη./in. (b) ε.-305 μ¡n./in., ε.-75 μ¡n./in., and ε.-150 μ¡n./in. Calculate the prin- cipal strains and stresses and the maximum shear stress. Locate the axis of the principal stress.
5-13. A rectangular rosette is attached to a steel plate having E 30 106 psi and v-03. The strain measurements are: (a) ε...
The following readings are measured from a rectangular strain rosette fixed to a member at a point Ea = -220X10-6,Ęy = 120X10-6,ɛc = 220x10-6. Calculate (i)Values of principal strains acting at the point (5 marks) (ii)Principal and shear plane angles (2 marks)
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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...
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P13.067 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 Ea = eb -165 ?? , ec- 130 ?? , E = 10,200 ksi, and v = 0.33, determine -170 ?? , (a) the stress components Ox , ? ? , and Txy at the point (b) the principal stresses and the maximum in-plane shear stress at the point; on paper, show...
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
STRAIN GAUGE TECHNIQUE 2) A rectangular strain resette, when mounted on a structural member, produces the following strain indications with the application of load -640 x 10-6 (along the x-axis, oo), εb ·250 x10° (450 ) and ε c = 310 x 106 (along the y-axis, 900) Assume E 200 GPa, v 0.3 The resulting principal stresses are: 1) 425 MPa 40 MPa 2) 214 MPa 13 MPa 3) 251 MPa 22 MPa 4) None of the above answers 03
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 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:
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.
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...