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22-Mec-B8 Engineering Materials: December 2013

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Heat-treatment schemes for 1080 steel using the TTT diagram
  2. Question 2 Identifying a polymer from its molecular weight and degree of polymerization
  3. Question 3 Necking instability, ultimate tensile strength and plastic work
  4. Question 4 E-glass/PVC composite — modulus, load sharing and strain
  5. Question 5 Aluminium–lithium substitution for aircraft floor beams
  6. Question 6 Processing routes for aerospace FRP laminated components
  7. Question 7 Magnesium sacrificial anode in a hot water heater
  8. Question 8 Composition of a barium-borate glass-ceramic in weight percent

Start with Question 1 →

Paper format. National Exams, December 2013 — 07-Mec-B8 Engineering Materials. Three hours, open book; any non-communicating calculator permitted. Eight questions, all of equal value; any FIVE constitute a complete paper, so each question is worth 20 marks. Candidates are urged to state any assumptions made. All eight questions are solved below, because the set as a whole is the study resource.

Reference texts (22-Mec-B8 Engineering Materials).

  • Askeland & Wright, The Science and Engineering of Materials, 7th ed. — the primary syllabus text.
  • Callister & Rethwisch, Materials Science and Engineering: An Introduction, 10th ed.
  • Shackelford, Introduction to Materials Science for Engineers, 8th ed. — ceramics, glasses and glass-ceramics.
  • Dieter, Mechanical Metallurgy, 3rd ed. — true stress–strain and the necking instability.
  • Fontana, Corrosion Engineering, 3rd ed. — galvanic series, cathodic protection and Faraday’s law.
  • Groover, Fundamentals of Modern Manufacturing, 7th ed. — composite shaping processes.