1. Spring 2001ISAT 430 Dr. Ken Lewis1 Things to Know Review ISAT 430

2. Spring 2001ISAT 430 Dr. Ken Lewis2 Stress Strain  Curves obtained from tensile tests  Information obtained Strength Ductility Toughness Elastic modulus Stiffness Range of workable properties

3. Spring 2001ISAT 430 Dr. Ken Lewis3 Stress -- Strain  Know a lot about the material just from a glance at the S – S curve  Know the elastic region  Understand strain hardening Grain boundary movement and blockage  Understand the effect of temperature on the stress strain properties.

4. Spring 2001ISAT 430 Dr. Ken Lewis4 Know what’s Going on here

5. Spring 2001ISAT 430 Dr. Ken Lewis5 Composites  Know what a composite is.  Know the benefits of a composite Using different materials to affect the bulk properties Weight Strength …

6. Spring 2001ISAT 430 Dr. Ken Lewis6 Composites  Know the function of the matrix  Know the function of the reinforcement  Know the various types of reinforcement and why you would choose each Continuous Discontinuous particulate

7. Spring 2001ISAT 430 Dr. Ken Lewis7 Composites  Have a knowledge of the various fibers used in most composites Glass Aramid Carbon and graphite –Know difference Boron …

8. Spring 2001ISAT 430 Dr. Ken Lewis8 Composites  Understand the effect on properties that occurs using different types of reinfocements  Understand the importance of the reinforcement / matrix interface / bond  Understand anisotropy in composites and why it occurs

9. Spring 2001ISAT 430 Dr. Ken Lewis9 Composites  The rule of Mixtures Know that it uses the volume fraction Know why  Other types of composites Sandwiches Foam cores

10. Spring 2001ISAT 430 Dr. Ken Lewis10 FRPs…..MMCs…..& CMCs….  Know the differences Advantages and disadvantages of each Applications for each General material used in each

11. Spring 2001ISAT 430 Dr. Ken Lewis11 Composite Processing  Understand preforms  Know the various ways of laying up a composite  FRP’s By hand Spray molding Filament winding –Mandrels –Helical, polar, braid pultrusion

12. Spring 2001ISAT 430 Dr. Ken Lewis12 Composite Processing  MMC’s Cermets Cemented carbides  CMC’s Mixing Compaction sintering

13. Spring 2001ISAT 430 Dr. Ken Lewis13 Metal Casting  Know history (in general)  Sand casting Know the process steps  Investment casting Know the process steps  Know the advantages of each

14. Spring 2001ISAT 430 Dr. Ken Lewis14 Phase Diagrams  Understand phases  Understand solutions and compounds Intersticial Substitutional  Understand how phase diagrams are made  Know what they are good for

15. Spring 2001ISAT 430 Dr. Ken Lewis15 Phase Diagrams  Know what phases are present Function of composition Function of temperature

16. Spring 2001ISAT 430 Dr. Ken Lewis16 Phase Diagrams  Understand and be able to use the inverse lever rule Ends of the line give the composition Ratios of the line tell how much of each

17. Spring 2001ISAT 430 Dr. Ken Lewis17 Heat Treatment  Know the principal ways of heat treating  Know why heat treating is done  For the Fe – C system Know where iron, steels, and cast irons exist Know what the various important phases of Fe—C are; –  ferrite,  iron,  iron, austenite, bainite, pearlite, and cementite

18. Spring 2001ISAT 430 Dr. Ken Lewis18 Heat Treatment  Annealing Know the principals  Martensite Know what it is, How it is formed What is its structure

19. Spring 2001ISAT 430 Dr. Ken Lewis19 Heat Treatment  Understand the TTT curves Their uses How they work  Quenching Why quench Why different fluids are used

20. Spring 2001ISAT 430 Dr. Ken Lewis20 Heat Treatment  Surface hardening Know the common procedures Know the different uses

21. Spring 2001ISAT 430 Dr. Ken Lewis21 Extra Credit  Be able to derive the matter – energy relationship first proposed by Albert Einstein Oh Yeah!!!!!!!!!!!! E = ma 2 E = mb 2 E = mc 2

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