LO2b assignment: stress / strain analysis of a thin cylinder Using experimental apparatus to measure strains on the surface of a thin cylinder which is subjected to an internal pressure, and

incorporating appropriate theory, this assignment has the following objectives: a) determine Young's modulus for the cylinder material and compare this to the stated value b) determine Poisson's ratio for the cylinder material and compare this to the stated value c) calculate experimental values for the principal stresses created in the cylinder walls (using the measured principal strain values) and compare these to the theoretical values (calculated using 'thin cylinder theory') d) apply appropriate theories of failure to determine 'factors of safety' for the cylinder at the maximum operating pressure e) construct a Mohr's circle of strain using the principal strain gauge values, and then compare the non-principal strain gauge readings to those found from using Mohr's circle/nThe submitted work for this assignment will take the form of a formal report with a high standard of content and presentation expected: . . the report must be created in electronic format, using the third person perspective and in the past tense all calculations should be clearly shown (with formulae properly formatted) using the appropriate units graphs can be hand-drawn or produced electronically (however, lines of best fit must be placed manually) all the objectives must be met using the appropriate theories and correctly recorded experimental data analysis of results will include calculations of variance between experimental and theoretical values, and discussion of possible reasons for the variance © North East Scotland College - November 2014 1 Mechanical Engineering