+++ ++++ Figure 1: Thick walled cylinder subject to internal and external pressures

Answer Correctly.

Circle all correct statements for the Young's or elastic modulus, E: a. Has units of force per unit area. b. Is a measure of the ductility of a metal. c. Can be used to determine transverse strains in uniaxial loading. d. Is a material property. e. Is the slope of the elastic portion of a stress-strain (s-e) tensile curve Circle all of the statements that describe interstitial solid solutions: a. Is an example of a line defect. b. A solute atom replaces a solvent atom in the matrix. c. Would predict formation when adding carbon (C) to iron (Fe). d. Would predict formation when adding chromium (Cr) to iron (Fe). e. Requires the formation of a cation-anion vacancy pair. f. The solute atom has a smaller radius than the solvent atom.

Tutorial Sheet Part 1 (Basics) A thin-walled pressure vessel has a diameter of 45mm, a wall thickness of 1.5mm and is subject to an internal pressure of 200 bar. For the outer surface of the pressure vessel calculate the: a. longitudinal stress b. circumferential stress c. radial stress 2. Calculate the same again but for the internal surface of the pressure vessel. 3. Calculate the factor of Safety of the vessel based on the pressure given a yield strength of 28 0MPA 4. Sketch the stress profile through the wall-thickness of the pressure vessel for the: a. longitudinal stress b. circumferential stress c. radial stress i6 the angwers wrong 2? amgwers Answers 01: Ja) 140 MРа N, b) 280MPа, с) 22: а) 140 MРа N, b) 280MPа, с) -20 МPа Q3: 1.0 [no factor of safety] О МРа

Answer the questions below for the following system. Young's modulus and Poison's ratio can be taken as 200 GPa and 0.3, respectively. a) Calculate and determine the stress state for point H using undergraduate level solid mechanics knowledge? b) Determine the principal stress values at point H using undergraduate level solid mechanics knowledge? Top view of section where H is located Point H no 300 mm 120 mm C .H 540 mm A Diameter of the pipe d=36 mm P=900 N

-Which of the following statement/s is NOT true?Strain is dimensionlessThe cross-sectional area affected by the rivets in a plate is πdtStrain is the total deformation of the body divided by its original length.Shear stress is directed parallel to the area upon which it acts. -Which statement is NOT true about ksi? *Kilo (psi).1000 lb1 x10^3 psi.1 x10^3 lb. -Tensile stresses and strain are considered:negative tensile stress and positive lengthnegative increase in lengthpositive increase in lengthpositive tensile stress and negative length

Derive the formula of the critical radius for spherical wall.

3rd option is correct. Please show the work within 20minutes includes Free body diagram. [Solution should not copied]

Bar one has a Young's modulus that is bigger than that of bar two. This indicates bar one:

The tangential stress is produced twice that of the longitudinal stress in thin walled pressure vessel, which type of the stress is the most critical?