10.4 (B) A steel thick cylinder of external diameter 150 mm has two strain gauges fixed externally, one along the longitudinal axis and the other at right angles to read the hoop strain. The cylinder is subjected to an internal pressure of 75 MN/m² and this causes the following strains: (a) hoop gauge 455 x 10 tensile (b) longitudinal gauge 124 x 10 tensile Find the internal diameter of the cylinder assuming that Young's modulus for steel is 208 GN/m² and Poisson's ratio is 0.283. [BP] [96.7 mm]

10.4 (B) A steel thick cylinder of external diameter 150 mm has two strain gauges fixed externally, one along the longitudinal axis and the other at right angles to read the hoop strain. The cylinder is subjected to an internal pressure of 75 MN/m² and this causes the following strains: (a) hoop gauge 455 x 10 tensile (b) longitudinal gauge 124 x 10 tensile Find the internal diameter of the cylinder assuming that Young's modulus for steel is 208 GN/m² and Poisson's ratio is 0.283. [BP] [96.7 mm]

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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10.4 A steel thick cylinder of external diameter 150 mm has two strain gauges fixed externally, one along the longitudinal axis and the other at right angles to read the hoop strain. The cylinder is subjected to an internal pressure of 75 MN/m² and this causes the following strains: (a) hoop gauge: 455 x 10-6 tensile. (b) longitudinal gauge: 124 x 10-6 tensile. Find the internal diameter of the cylinder assuming that Young's modulus for steel is 208 GN/m² and Poisson's ratio is 0.283. [96.7 mm]
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A strain gauge, having a gauge factor of 2, is mounted on a rectangular steel bar (Em=200 x 10 ° N/m2). The bar is 4 cm wide and 1 cm high, and subjected to a tensile force of 30 kN. the resistance of the gauge is 120 in the absence of axial load The stress in the bar in KN/m² Choose... The strain in the bar in microstrain Choose... The reference resistor Choose... The resistance change of the strain gauge Choose...
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