Skip to Content

College of Engineering and Computing

Faculty and Staff

Yuh J. Chao

Title: Distinguished Professor Emeritus, Mechanical Engineering
College of Engineering and Computing
Phone: 803-777-5869
Fax: 803-777-0106
Office: 300 Main Street 
Room A123/A211
Columbia, SC 29208
Resources: Research
headshot of Yuh Chao


Dr. Chao's research and interests include theoretical and experimental studies on failure, fracture and fatigue of materials and structures, welding modeling for residual stress and distortion, impact mechanics for material characterization and failure criterion, biomechanics and nanomechanics, and the durability of PEM fuel cell systems.


  • Ph.D., University of Illinois, Urbana-Champaign, Illinois, 1981
  • M.S., National Tsing-Hwa University, Taiwan, 1977
  • B.S., National Cheng-Kung University, Taiwan,1975

Notable Recognition

  • PVP Dr. Heki Shibata Outstanding International Technical Session Award, “Applications of Fracture Mechanics in Failure Assessment – II”, developed by A.H. Mourad, Y.J. Chao and P.S. Lam in 2017, awarded at ASME Pressure Vessel and Piping Conference, Prague, 2018.
  • John Ducate, Sr. Endowed Chair Professorship, USC, 1996-2013
  • Distinguished alumni award, Department of Mechanical Engineering, National Cheng-Kung University, 2015
  • Outstanding Technical Paper Award in ASME Pressure Vessels and Piping Division Conference 2009, Material and Fabrication Technical Committee
  • Fellow – Society of American Society of Mechanical Engineers, 2006
  • B.J. Lazan Award — Society for Experimental Mechanics, 2006
  • Hetenyi Award — Society for Experimental Mechanics, 2003
  • Fellow — Society for Experimental Mechanics, awarded 2000
  • Outstanding Presentation Award at the AeroMat 2000, the 11th Advanced Aerospace Materials and Processes Conference, June 26-29, 2000, Bellevue, Washington, by ASM International
  • Research Achievement Award, College of Engineering, USC, 1997
  • R.E. Peterson Award — Society for Experimental Mechanics, 1996
  • Research Fellow Award, Alexander von Humboldt Foundation, Germany, 1991

Selected Publications

  • “Modified Williams’ crack tip solution including crack face pressure”, H Zhang, W Kong, YH Liu, YJ Chao, Engineering Fracture Mechanics, 295(23), 2024

  • “Constraint-dependent CTOA determination for stable ductile crack growth”, XK Zhu, PS Lam, YJ Chao, Engineering Fracture Mechanics, 271, August 2022.

  • “Nondestructive evaluation of stress corrosion cracking in a welded steel plate using guided ultrasonic waves,” Z Ma, L Yu, YJ Chao, PS Lam, RL Sindelar, AJ Duncan, TT Truong, C. Verst, PK Sun, and A. Campbell, Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems, 5(3), 2022.

  • “On the second order term asymptotic solution for sharp V-notch tip field in elasto-viscoplastic solids”, Y Dai, F Qin, Y Liu, YJ Chao, International Journal of Solids and Structures 217(15), 106-122, 2021.

  • “Does the Biaxial Loading Affect the Apparent Fracture Toughness (KC)?”, C Chen, H Xiao, YJ Chao, PS Lam, ASME Journal of Pressure Vessel Technology 142 (3), 2020.

  • “C(t) dominance of the mixed I/II creep crack: Part II. Extensive creep”, Yanwei Dai, Yinghua Liu, Fei Qin, Yuh J. Chao, Guian Qian, Theoretical and Applied Fracture Mechanics, Volume 106, April 2020.

  • “Application of digital image correlation (DIC) to sloshing liquids”, Chi-Hui Chien, Ting-Hsuan Su, Chao-Jian Huang, Yuh-Jin Chao, Wei-Li Yeh, Poh-Sang Lam, Optics and Lasers in Engineering, 115, April 2019, Pages 42-52.

Challenge the conventional. Create the exceptional. No Limits.