Professor, Mechanical Engineering Technology
Hogue Technology Building, Room 203J, Ext. 1118
- MET 426 - Applications of Strength of Materials
- MET 351 - Metallurgy/Materials and Processes
- MET 382/IET 582 - Plastics and Composites
- MET 483/IET 583 - Ceramics and Composites
- MET 257 - Casting Processes
- IET 457 - Advanced Foundry
- MET 495 - MET Senior Projects
I promote process education and hold a secondary education degree as well as a Ph.D. in engineering science. I enjoy education, and spend a substantial amount of time with students, in labs & developing curricula, while supporting the university and my field with research focused on mechanics and materials.
- MET326 Appl in Strength of Matls>
- IET312 Strength of Materials
- MET327 Technical Dynamics
- MET351 Intro Matls & Metallurgy
- MET388/423 Tool Design/CADCAM
- MET383 Plastics & Composites
- FLT221 Aircraft Systems I
- MET420 Finite Element Analysis
- MET482 Ceramics & Composites
Doctor of Philosophy Degree in Engineering Science, 1994, Wash. State Univ., Pullman (Dr. Hamilton).
Microstructural and Constitutive Behavior of Superplastic Titanium Alloy Ti-6Al-4V
Master of Science Degree in Materials Science & Engineering, 1986, Univ. CA, Los Angeles (Dr. Ono).
Acoustic Emission Behavior of SiC/Al Metal Matrix Composites
Bachelor of Science Degree in Mechanical Engineering, 1983, University of Wyoming, Laramie, WY.
Bachelor of Science Degree in Physical Science, 1979, University of Minnesota, Minneapolis, MN.
Faculty, 1996- , Assistant Professor, Central Washington University, Ellensburg. Tenure track position in mechanical engineering technology and industrial technology. Courses include; CAD/CAM, Industrial Design, Tool Design, Finite Element Analysis, Strength of Materials, Dynamics, Ceramics, Plastics & Composites, Metallurgy and Aircraft Systems. Research areas include forming processes (experimental and numerical modeling techniques) and engineering aspects of large animal limb injury management.
Faculty, 95-96 , Assistant Professor, Washington State University, Pullman. Taught undergraduate lab classes (MSE320 met lab, MSE323 x-ray lab) while renovating the heat treatment & optical lab facilities (100K+), mechanical testing/forming lab, and dev. new curricula (composites & polymer lab) toward ABET visit.
CRADA (DOE & NASA) as RA, 94-95 , with Dr. Hamilton, Washington State Univ. Developed an SPF Al5XXX alloy (with GM, Kaiser, Boeing, Battelle PNL, , U of MI).
Research Projects (Boeing Co., GE Corp., BAe Ltd.) as RA/TA, 89-94 ,WSU.
Created a high temperature (1000C), inert atmosphere, superplastic forming test facility.
Used deformation mechanisms and experimental data to describe grain growth and create a constitutive relation for Ti- 6%Al- 4%V. Applied instability criteria with finite element analysis to reduce process time under uniform deformation.
Research Project (Lockheed Co.) as RA, 84-88 , with Dr. Ono, U of CA, Los Angeles.
Improved fracture toughness properties of discontinuous SiC/2024 by analyzing deformation mechanisms (via acoustic emission, SEM and mechanical property testing) and subsequently altering material manufacturing process parameters.
Research Projects (GM, US Navy) as LA, 81-83 , with Dr. Adams, CMRG, U of WY. Fabricated polymer composites/test coupons, performed mechanical tests and processed data. Fabricated Al/Gr test coupons and performed biaxial testing.
Secondary Education Teacher, 80-81 , at Sheridan High School, Sheridan, WY. Taught physics, algebra and math. Coached forensics (debate team) and participated in community theater.
Member Technical Staff, 88-89: Rockwell International, North American Aircraft, Lakewood, CA
Managed airframe material interface design (titanium aluminide - 1M$) on the National AeroSpace Plane (Materials Consortium: RocketDyne, Pratt-Whitney, Gen. Dynamics, Martin Marietta).
Senior Project Engineer, 86-87: NDE Technology, Inc., Torrance, CA.
Managed research, development and service work of ultrasonic imaging, pipeline leak location and hypervelocity impact testing. Senior project engineer while securing four major contracts (NASA JSC & Marshall, Martin Marietta).
Johnson, C.H., "Incorporating Student Assessment Skills into MET Outcomes", ASEE Annual Conference, 1999.
Johnson, C.H., et al, "Static Grain Growth in a Microduplex Ti-6Al-4V Alloy", Acta Mater., Vol 47, No. 1, 1999.
Kannan, K., Johnson, C.H., Hamilton, C.H. "A Study of Superplasticity in a Modified 5083 Al-Mg-Mn Alloy", Met. Trans. A, Vol 29A, 1998.
Hopper, S.A., Schneider, R.K., Ratzlaff, M.H., White, K.K., Johnson, C. H., "Effect of a pin hole and number on in vitro bone strength in the equine radius loaded in torsion", AJVR, Vol 59, No 2, February, 1998, pp 201-204.
Hopper, S.A., Schneider, R.K., Ratzlaff, M.H., White, K.K., Johnson, C. H., "Effect of different full-limb casts on in vitro bone strain in the distal portion of the equine forelimb", AJVR, Vol 59, No 2, Feb, 1998, pp. 197-200.
Kannan, K., Johnson, C. H., Hamilton, C. H., "The Role of Flow Properties and Damage Accumulation in Superplastic Ductility of Al-Mg-Mn Alloys", Mat. Sci. Forum, Vol. 243, 1997, pp. 125-130.
Johnson, C. H., Hamilton, C. H., "Confirmation of Machine-Induced Load Oscillations During Superplastic Tensile Testing", Met. Trans. A (Communication), 25A, July, 1994, pp 1545-1548.
Johnson, C. H., Hamilton, C. H., Zbib, H., Richter, S. K., "Designing Optimized Deformation Paths for Superplastic Ti-6Al-4V", Chicago, ASM / TMS Fall Conference: Advances in Superplasticity and SPF , ed. Chandra, Garmenstani, Goforth, 1992, pp 3-15.
Hamilton, C. H., Zbib, H. M., Johnson, C. H., & Richter, S. K., "Dynamic Grain Coarsening and its Effect on Flow Localization in Superplastic Deformation", Chiba, Japan: Society for the Advancement of Material and Process Engineering, 1991, pp 272-279.
Hamilton, C. H., Zbib, H. M., Johnson, C. H., & Richter, S. K., "Microstructural Coarsening and its Effect on Localization of Flow in Superplastic Deformation", Osaka, Japan: Japan Society for Research on Superplasticity, Osaka University, 1991, pp 127-132.
Johnson, C., Ono, K., & Chellman, D., "Acoustic Emission Behavior of MMCs", JAE 4(2/3), 1985, pp 263-269.
Johnson, C., Ono, K., & Chellman, D., "A Study of Mechanical Behavior of Metal Matrix Composites Using Acoustic Emission", Tokyo, Japan: JOC, 1986.
Roman, I., Ono, K., & Johnson, C., "Acoustic Emission Behavior of an Advanced Aluminum/Li. Alloy", JAE 4 (2/3), 1985, pp 111-115.
Washington State Univ. Certificate of Excellence in Research, First Place in Engineering Science Division.
Frank G. Brewer National Aerospace Education Award (USAF Auxiliary).
Westinghouse Science Talent Search Semi-Finalist and International Science Fair Finalist.
Professional: Tau Beta Pi, EIT/FE, ASM, TMS-AIME, ASME, AFS/FEF, ASEE.
Committees: Symposium on Undergraduate Research & Creative Expression, MSET Graduate Committee
Lay; Pilot, Experimental Aircraft Assoc., AOPA, Ham Radio(N7XEQ), Am. Farmland Trust.
Volunteer: Emergency Worker, President: Kittitas County Search and Rescue, Washington State.
Aerospace Education Officer: USAF Auxiliary (Civil Air Patrol), Major, Special Projects.
Worker: National Audubon Society (Kittitas Webmaster) and The Nature Conservancy.