Engineering Professional Programs

Course Outline

1. Introduction and Composite Fundamentals

1.1 Types of Composites; Why composites; History of applications

1.2 Nano, Micro and Macro behavior of composites

1.3 Anisotropic and tailored-made properties

1.4 Fundamental reinforcing mechanisms

1.5 Key differences between composites and metals

2. Properties of Fiber, Matrix and Composite

2.1 Functions of fiber, matrix and interface

2.2 Typical properties of fiber, matrix and composite

2.3 Raw material forms

2.4 Manufacturing of CFRP prepreg

2.5 Engineering properties of prepreg

3. Tooling and Manufacturing Processes

3.1 Layup tooling types and material selection

3.2 Thermal growth and other key issues in tool design

3.3 Bond assembly jigs and secondary tooling

3.4 Hand layup, Bag molding, compression molding

3.5 Pultrusion, FW, RTM, VaRTM, CAPRI, RTL

3.6 Manufacturing defects and quality control

3.7 Skill check problems

4. Composite Fabrication Practice

4.1 Bagging materials, hand layup and curing process

4.2 Hands-on laminate fabrication by group at Intec

4.3 Tour of composite manufacturing and testing facilities

4.4 Coupon testing; comparison of lab results with theory

5. Micromechanics

5.1 Elastic constants and Poisson's ratio

5.2 Fiber and matrix stresses near a broken fiber

5.3 Tensile strength of unidirectional composites

5.4 Micro buckling of fibers in compression

5.5 Examples; Skill check problems

6. Review of Liner Elasticity

6.1 Stress, strain, equilibrium equations, compatibility

6.2 Transformation of stress and strain tensors

6.3 Constitutive equations for linearly elastic materials

6.4 2-D plane stress and plane strain problems

6.5 Examples; Skill check problems

7. Stress-Strain Relations of a Lamina

7.1 2-D stress-strain relations along the material axes

7.2 Determination of orthotropic material constants

7.3 2-D stress-strain relation along the reference axes

7.4 Apparent modulus of an off-axis lamina

7.5 Examples; Skill check problems

8. Classical Lamination Theory

8.1 In-plane forces, bending and twisting moments

8.2 Derivation of classical lamination theory

8.3 Shear coupling in unbalanced laminates

8.4 Bending and stretching of unsymmetric laminates

8.5 Examples; Skill check problems

9. Hygrothermal Behavior

9.1 Heat conduction and moisture diffusion

9.2 Hygrothermal stress-strain relations for a lamina

9.3 General CLT with hygrothermal effects

9.4 Hygrothermal effects on material properties

9.5 Examples; Skill check problems

10. Failure Criteria for Orthotropic Materials

10.1 Maximum stress/strain criteria

10.2 Tsai-Hill criterion

10.3 Tsai-Wu criterion

10.4 Other criteria

10.5 Examples; Skill check problems

11. Stiffness and Strength Analyses of a Laminate

11.1 Apparent laminate stiffness; Carpet plots

11.2 Laminate strength analysis procedure

11.3 Failure envelopes; Examples

11.4 Progressive failure analysis

11.5 Examples; Skill check problems

12. Free-Edge Interlaminar Effects

12.1 Free-body diagrams of free edge stresses

12.2 Analysis of free edge interlaminar stresses

12.3 Effects of stacking sequence

12.4 Design guidelines

12.5 Examples; Skill check problems

13. Bending and Buckling of Laminated Plates

13.1 Governing equations and boundary conditions

13.2 Solutions for specially orthotropic laminates

13.3 Effects of anisotropy and boundary conditions

13.4 Effects of plate geometry on buckling loads

13.5 Examples; Skill check problems

14. Fracture of Notched Composites

14.1 Fracture mechanics for metals

14.2 Hole size effects in composites

14.3 WEK, WN, and Mar-Lin fracture models

14.4 Examples of Notched strength prediction

14.5 Examples; Skill check problems

15. Structural Testing

15.1 Mechanical property tests

15.2 Test standards and specimen configurations

15.3 Data reduction procedures

15.4 Element and component tests

15.5 Skill check problems

16. Inspection and Repair

16.1 Typical in-service and manufacturing damages

16.2 NDI methods and probability of detection

16.3 Typical bolted and bonded repairs

16.4 Critical issues in composite repair

16.5 Skill check problems

Texts

Jones, R. M., Mechanics of Composite Materials, 2nd Edition, Taylor & Francis, Philadelphia, PA, 1999 (Textbook); ISBN: 1-56032-712-X. (Required)
Click here to order through Amazon.com or BarnesandNoble.com.

László P. Kollár, and George S. Springer, Mechanics of Composite Structures, Cambridge University press, 2003, ISBN 0521801656

Niu, Michael, Composite Airframe Structures, Conmilit Press, 1992, ISBN 962-7128-06-6.

Gibson, R. F., Principles of Composite Materials Mechanics, McGraw-Hill, 1994

Hoskin, B. C., and Baker, A. A. (Ed.), Composite Materials for Aircraft Structures, AIAA Educational Series, New York, NY, 1986

Instructor

Dr. Kuen Lin

is a Professor in the Department of Aeronautics and Astronautics at the University of Washington. He is a Co-Director of the FAA Center of Excellence for Advanced Materials at UW. Dr. Lin obtained his Masters and Ph.D. degrees in the field of Aeronautical Structures and Composite Materials from Massachusetts Institute of Technology. Dr. Lin has over 30 years of research and development experience in advanced composite materials and structures. In addition to his research endeavors, Dr. Lin has concentrated his teaching on the subjects of mechanics of composite materials, foundation of solid mechanics, and finite element methods.

Questions

If you have questions about this program, please call UW Educational Outreach Advising at 206-685-8936 in the greater Seattle area or 1-800-543-2320. If you have questions about registration for this program, please call the UW Educational Outreach Registration Department at 206-543-2310 or 1-800-543-2320.

For more information about Boeing initiatives in composites education, email Michael Richey, Boeing Learning Training and Development, Engineering & Operations Group.