MEGR 493
Advanced Engineering Materials

Description: Composite materials: analysis, design and manufacturing. Selection of materials in mechanical designs, engineering polymers, biomaterials and nanomaterials. (spring, odd years*)

Who takes it: Junior/senior mechanical engineering students interested in the topic, satisfies mechanical engineering elective requirement. (elective)


Pre-requisite: MEGR 350 Materials Science, CEEGR 221 Strength of Materials, MATH 233 Linear Algebra, or instructor's consent*

Course objective: Understanding and the application of modern advanced materials (mainly composite materials) in mechanical engineering design (7 weeks). The course also exposes students to design methodologies and materials of current interest to mechanical engineers (3 weeks).

Textbook: Laminar Composites by George H. Staab, Publisher: Butterworth-Heinemann; (1999); ISBN: 0750671246 (Amazon listed at $67.95)

Evaluation: One two-hour final exam (40%), two hourly exams (20% X 2), homeworks (15%), pop-quizzes (4%), and professionalism (1%).

Topics Covered:

  • Composite materials introduction, background, selected manufacturing techniques (2 lectures)
  • Generalized stress, strain, and constitutive equations (4 lectures)
  • Analysis of unidirectional composite lamina (stiffness matrix, stress transformation, plane stress) (4 lectures)
  • Composite lamina failure theories (max shear, max strain, Tsai-Hill max work, Tsai-Wu tensor theory, buckling) (4 lectures)
  • Composite laminate analysis (classical lamination theory, failure analysis, design for application) (6 lectures)
  • Selection of materials in mechanical design (3 lectures) time permitting
  • Engineering polymers (2 lectures) time permitting
  • Biomaterials (2 lectures) time permitting
  • Nanomaterials (2 lectures) time permitting

Special Note:

  • The course is mathematically rigorous.
  • Heavy use of matrix algebra. The use of computation software may become necessary. The deparment will provide MATLABTM, but you can use other softwares or even write your own C++ solver codes.
  • May arrange a tour to a composite manufacturing or testing facility in the Seattle area.

Sample Lectures:

References:

Links:

About Composite

Toray Composites (USA)

Composite World

Hexcel Corporation

American Composite Manufacturers Association

Airtech

FAA Center of Excellence (AMTAS), U of Wash.

Prof. Micheal F. Ashby

Univ. Delaware Center of Composite Materials

Fiberlay (Seattle, WA)

Figure: 100x SEM micrograph of a fracture surface on a titanium matrix composite (reinforced by large diameter SiC fiber) after fatigue failure. This photomicrograph was taken by me in 1995.

* check with the instructor