Problem 10-4: A strain gauge that has a nominalresistance of 350 S, and a gauge factor of 1.8 ismounted in an equal-arm bridge, which is balanced at azero applied strain condition. The gauge is mounted ona 1 cm² aluminum rod with Em = 70 GPa. The gaugesenses axial strain. The bridge output is 1 mVfor abridge input of 5 V. What is the applied load, assumingthat the rod is in uniaxial tension?

Given:Nominal resistance, Ro= 350Gauge factor, GF = 1.8 Bridge output, Vout= 1 mVBridge input, Vin =…

Answered: Problem 10-4: A strain gauge that has a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The I beam below is fixed to a rigid wall and subjected to a force 100 kN at its right end. The specifications of the I beam is shown on the right. Other relevant parameters include the section moment of inertia Iz = 45.2 x 10-6 m4, the elastic modulus E = 200 GPa, and Poisson’s ratio v = 0.3. To monitor the local strain, a small rosette of 3 strain gauges is mounted at the top surface in the middle of the beam (red dot).a) Solve the stress tensor at the location of strain gauge (red dot). Find the principle stresses and maximum shear stress.b) What is the strain tensor at the red-dot location?c) What are the readouts of each strain gauge?
Using the sample set of readings provided for Experiment 1 and taking the Young's Modulus of steel to be 200 GPa: • Calculate the Euler buckling stress
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Please answer the question clearly, stating how you chose the formulas and what each variable represents. Thank you!
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QB3 TWO DIMENTIONAL STRAINThree strain gauges were arranged in the form of a rectangular rosette and positioned on atest surface. The measured strains were as follows: 1 = 200x 10-6 2 = 100 x 10-6 3 = 50 x 10-6Determinea) the principal strains and the principle stressesb) the direction of the greater principal strain relative to gauge 1 and sketch the Mohrstrain circle. Take the Young Modulus of Elasticity value to be E = 200 GN/m2 andPoisson’s ratio  = 0.28.

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