3.064 home page http://web.mit.edu/course/3/3.064/www/ 3.064 - Polymer Engineering Time & Place (Fall Term 2007): MWF12, 2-135. Instructor: Prof. David Roylance, room 6-202, phone 3-3309), email roylance@mit.edu. Office hours: MWF 1-3 pm, TTh 9:30-11:30 am, appointments scheduled by email. Text: N.G. McCrum, C.P. Buckley and C.B. Bucknall, Principles of Polymer Engineering, 2nd ed., Oxford Science Publications, 1997. Syllabus Schedule and assignments References and web links roylance@mit.edu http://web.mit.edu/course/3/3.064/www/ 1 of 1 8/29/2007 12:53 PM
3.064 Syllabus http://web.mit.edu/course/3/3.064/www/syllabus.html 3.064 Syllabus 3.064 Polymer Engineering is one of DMSE's two restricted electives in polymers (the other is 3.063 Polymer Physics). 3.064 is aimed at design , including those aspects of processing, structure and properties of polymers needed in materials engineering designs using these materials. The subject builds on the concepts taught in 3.032, 3.034, and 3.044, though they are not strict prerequisites. The subject carries 3-0-9 credit, so approximately three hours of outside work should follow each lecture hour. These outside hours will include reading of sections of the McCrum text and various online articles as assigned in the Schedule, and usually one engineering problem. The reading for a given day should be done before coming to class, and the problem will be due at the next class meeting. Grading will be based on the quality and timeliness of the submitted problems, attendance and the vigor of your in-class discussion, the three quizzes, and the design you will present at the end of the term. Each student will develop a design for a polymeric load-bearing article. The design will culminate in an engineering drawing such as would be rendered with SolidWorks or AutoCad, to include a specification of material and processing method. Materials selection calculations, stress analyses, etc., will be included in the design writeup. The design drawings will be imported into PowerPoint or other presentation software, and presented to the class at the end of the term. You should be working toward this design during the entire term, and you should skim Chap. 8 of McCrum early to get started. (Click here for a PowerPoint example design of a slide latch that might be used on a backpacks, and here for the animated finite element stress results for it). Student collaboration on homework is permitted and encouraged, but all work to be submitted should then be worked out and written up on your own. Copying directly from "bibles" or other such sources is cheating, although studying prior solutions can be an effective learning aid. Common sense should be exercized in this. Computer solutions are encouraged when appropriate; Maple or Mathematica and similar symbolic math packages are excellent for many of the assigned problems. There are no formal recitations, but you are encouraged to make frequent use of the Instructor's office hours for assistance or just informal discussion. 1 of 1 8/29/2007 12:54 PM
3.064 Schedule - Fall 2007 http://web.mit.edu/course/3/3.064/www/schedule.html 3.064 Schedule - Fall 2007 1. Wed. 9/5: Introduction, overview of polymeric materials. Read McCrum pp. 1-18, hw1: Read the recent opinion piece from the Newton Tab, then search the web for information related to the pros and cons of plastic grocery bags, and write up your analysis and opinions (1-3 pp.). 2. Fri. 9/7: Polymerization and crosslinking. Read Sections 1.1 - 1.5; do Problem 1.12 in McCrum. 3. Mon. 9/10: Molecular weight. Sect. 1.6 - 1.7, Chap. 1 Notes, Prob. 1.17. 4. Wed. 9/12: Crystallinity and orientation. Sect. 2.1 - 2.5 & 2.10, Prob. 2.22 & 2.23. 5. Fri. 9/14: Glass transition temperature. Sect. 2.10, Probs. 2.10 & 2.11. 6. Mon. 9/17: Chain conformation, kinetic theory of rubber elasticity. Sects. 2.7 - 2.9, 3.1 - 3.4. Prob. 3.5. 7. Wed. 9/19: Mechanics of elastomers. Sects. 3.5 - 3.6, Prob. 3.16. 8. Fri. 9/21: Viscoelasticity - Creep, stress relaxation. Sect. 4.1 - 4.2.2, Prob. 4.4. 9. Mon. 9/24: Student holiday, no class. 10. Wed. 9/26: Dynamic response. Sect. 4.2.3, Prob. 4.5. 11. Fri. 9/28: Maxwell models. Sect. 4.3-4.3.1, Prob. 4.9. 12. Mon. 10/1: Zener model. Prob. 4.10. 13. Wed. 10/3: Distribution of relaxation times. Sect. 4.3.2, Prob. 4.11. 14. Fri. 10/5: Effect of temperature. Sect. 4.3.3, Prob. 4.16. 15. Mon. 10/8: Columbus Day - no class. 16. Wed. 10/10: Stiffness. Sect. 4.4, Prob. 4.17. 17. Fri. 10/12: Quiz 1. 18. Mon. 10/15: Stress analysis. Prob. 4.17. 19. Wed. 10/17: Yielding and crazing. Sect. 5.1-5.3, ESC article, Prob. 5.4. 1 of 3 8/29/2007 12:51 PM
3.064 Schedule - Fall 2007 http://web.mit.edu/course/3/3.064/www/schedule.html 20. Fri. 10/19: Linear fracture mechanics. Sect. 5.4, Prob. 5.16. 21. Mon. 10/22: Elastic-plastic fracture. Sect. 5.5, Prob. 5.14. 22. Wed. 10/24: Brittle fracture, toughening. Sect. 5.6 - 5.7, Prob. 5.20. 23. Fri. 10/26: Composites. Sect. 6.1, C&EN article, Roylance overview article. Prob. 6.2. 24. Mon. 10/29: Matrices and reinforcements. Sect. 6.2, Gillham TTT article, Prob. 6.5. 25. Wed. 10/31: Composites fabrication. Sect. 6.3, Prob. 6.8(1). 26. Fri. 11/2: Mechanics of continuous fibers. Sect. 6.4.1, Advanced Fibers article. Prob. 6.12. 27. Mon. 11/5: Discontinuous fibers, reinforced rubber. Sect. 6.4.2 - 6.5, Prob. 6.22. 28. Wed. 11/7: Melt processing. Sect. 7.1, Prob. 7.1. 29. Fri. 11/9 - Veterans' Day - no class. 30. Mon. 11/12: Viscous flow. Van Krevelen chapter, Prob. 7.6. 31. Wed. 11/14: Viscous flow continued. FEA article. 32. Fri. 11/16: Quiz 2. 33. Mon. 11/19: Cooling and solidification. Sect 7.3, ultrasonic heating article. Prob: write up any solution of the transient heat conduction equation. 34. Wed. 11/21: Extrusion. Sect. 7.4, Prob. 7.15. 35. Fri. 11/23: Thanksgiving holiday - no class. 36. Mon. 11/26: Injection molding. Sect. 7.5, Prob. 7.31. 37. Wed. 11/28: Thermosets and thermoforming. Sect. 7.5.4 - 7.8, Kerimid article. (Tire schematic) 38. Fri. 11/30: Elements of design. Sect. 8.1. Design tools. 39. Mon. 12/3: Materials selection. Sect. 8.2, Prob. 8.6. 40. Wed. 12/5: Design for manufacturing, stiffness, and strength. Sect. 8.3-8.5, Prob. 8.27(a). 41. Fri. 12/7: Quiz 3. 2 of 3 8/29/2007 12:51 PM
3.064 Schedule - Fall 2007 http://web.mit.edu/course/3/3.064/www/schedule.html 42. Mon. 12/10: Student design presentations. 43. Wed. 12/12: Student design presentations. 3 of 3 8/29/2007 12:51 PM
3.064 References http://web.mit.edu/course/3/3.064/www/references.html 3.064 Links and References Web links Mechanics modules Enclyclopedia of Polymer Science and Technology Online ASM Handbooks GE plastics design center DuPont design guide Modern Plastics magazine Perkin-Elmer tutorial on dynamic mechanical analysis (DMA). MoldFlow injection molding simulation tools. Articles C&EN article on "green" polymers. C&EN article on plastic bags. Smithsonian Magazine articles on polymers from corn and fertilizer issues. Gel Permeation Chromatography. Weathering of polymers. Structure-property relations in drawn olefin monofilaments. Random walk theory. Williams viscoelasticity article Viscoelastic fiber impact The Sternstein crazing criterion Vogel: biomimetics? Ko: spider silk High performance fibers Charles Goodyear Giulio Natta Silly putty Erasers Golf balls 2005 C&EN polymer industry overview Teflon Books Ashby, M.F., Materials Selection in Mechanical Design, Elsevier, 2005. [A very important text in materials selection. DMSE has a license for the CES software that implements the Ashby method.] Bicerano, J., Prediction of Polymer Properties, Marcel Dekker, 2002. Fenichell, S., Plastic - The Making of a Synthetic Century, HarperCollins, 1996. [Here are many of the fascinating "people stories" of the polymer industry and its historical development.] 1 of 2 8/29/2007 12:54 PM
3.064 References http://web.mit.edu/course/3/3.064/www/references.html Jones, R.M. Mechanics of Composite Materials, 2d. ed., Taylor & Francis, Philadelphia, 1999. Mascia, L. Thermoplastics: Materials Engineering, Applied Science Publishers, 1982. Ragone, D.V., Thermodynamics of Materials, Vol. I, Wiley, 1995. Rodriguez, F., et al., Principles of Polymer Systems, 5th ed., Taylor & Francis, 2003. Van Krevelen, D. W. Properties of Polymers : Their Correlation with Chemical Structure, Their Numerical Estimation and Prediction from Additive Group Contributions, Elsevier, 1990. [A wonderful general reference, in addition to being a classic in quantitative structure-property relations (QSPR).] Vincent, J., Structural Biomaterials, Princeton, 1990. [Nature is often quite complex in its use of polymer concepts, and much current work in "biomimetics" seeks to copy its successes. This book is a fine overview of necessary concepts.] Vogel, S., Cat's Paws and Catapults, Norton, 1998. Whittington, L., Whittington's Dictionary of Plastics, Technomic, 1978. [The polymers field is full of jargon and terms from diverse areas; this book is valuable in making sense of it.] Young, R.J., Introduction to Polymers, Chapman and Hall, 1981. [A fine overview of polymer science and engineering.] 2 of 2 8/29/2007 12:54 PM
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