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Faculty and Staff Profiles

Benjamin Liaw

Professor

School/Division

Grove School of Engineering

Department

Mechanical Engineering

Office

Steinman Hall ST - 247

p: (212) 650-5204

f: (212) 650-8013

e: liaw@ccny.cuny.edu

  • Profile

    Professor Liaw received his Ph.D. degree from the University of Washington in 1983. After a year of post-doctoral research study at University of Washington, he joined the faculty of CCNY in 1984, where he is now a Full Professor at the Department of Mechanical Engineering. He was also appointed Acting Associate Dean for Undergraduate Affairs, School of Engineering during 2000-2002. His major research specialty is in the area of design, analysis and testing of energy absorbing composites (both advanced and nano) and smart materials. He has expertise and extensive experiences in non-destructive evaluation using ultrasound, acoustic emission, vibratory, self sensing and piezoelectric techniques, high-speed impact tests for composites, material properties characterization at high strain rates, and 3-D dynamic, non linear finite element modeling. Through years he has published more than 90 refereed papers with funding supports from many federal agencies and industrial sponsors, including NSF, NASA, ARPA, AFOSR, ARO, U.S. Army TACOM-TARDEC and ARDEC-Picatinny Arsenal, AT&T, Digital Equipment Corporation, Alliant Techsystems, Global Contour, Frontier Performance Polymers, NYS GRTI and PSC CUNY. In addition to being active in research, he also served as the ECSEL Project Director at CCNY in 1993-2001. The main charge of the NSF-funded ECSEL Coalition is to improve undergraduate engineering education through design for manufacturing across the curriculum.

     

  • Education

    Ph.D., 1983, University of Washington, Seattle, USA M.S., 1979, National Tsinghua University, Hsinchu, Taiwan B.S., 1977, National Tsinghua University, Hsinchu, Taiwan

  • Courses Taught

    • ME 41100: Systems Modeling, Analysis and Control
    • ME G4000: Applied Stress Analysis
    • ME I6200: Advanced Mechanical Vibrations
  • Research Interests

    • Composites (including hybrid and nano), smart materials and ceramics
    • Fracture and damage mechanics
    • High and low temperature material characterization
    • High strain rate material characterization
    • System dynamics, vibration and control
    • Finite & boundary element techniques
    • Enhancement in engineering education
  • Publications

    Recent Journal Publications:

    • E. Sevkat, B. Liaw, F. Delale and B.B. Raju, “Effect of Repeated Impacts on the Response of Plain-Woven Hybrid Composites,” Composites Part B: Engineering, doi:10.1016/j.compositesb.2010.01.001.
    • Y. Ngabonziza, H. Ergun, R. Kuznetsova, J. Li, B.M. Liaw, F. Delale and J.H. Chung, “An Experimental Study of Self-diagnosis of Interlaminar Damage in Carbon-fiber Composites,” Journal of Intelligent Material Systems and Structures, Vol. 21, No. 3, pp. 233-242, 2010.
    • Y. Liu and B. Liaw, “Effects of Constituents and Lay-up Configuration on Drop-Weight Tests of Fiber-Metal Laminates,” Applied Composite Materials, Vol. 17, No. 1, pp. 17-43, 2010.
    • Y. Liu and B. Liaw, “Drop-Weight Impact Tests and Finite Element Modeling of Cast Acrylic/Aluminum Plates,” Polymer Testing, Vol. 28, No. 8, pp. 808-823, 2009.
    • Y. Liu and B. Liaw, “Drop-Weight Impact Tests and Finite Element Modeling of Cast Acrylic Plates,” Polymer Testing, Vol. 28, No. 6, pp. 599-611, 2009.
    • E. Sevkat, B. Liaw, F. Delale and B.B. Raju, “Drop-Weight Impact of Plain-Woven Hybrid Glass-Graphite/Toughened Epoxy Composites,” Composites Part A: Applied Science and Manufacturing, Vol. 40, No. 8, pp. 1090-1110, 2009.
    • E. Sevkat, B. Liaw, F. Delale and B.B. Raju, “A Combined Experimental and Numerical Approach to Study Ballistic Impact Response of S2-Glass Fiber/Toughened Epoxy Composite Beams,” Composite Science and Technology, Vol. 69, Issues 7-8, pp. 965-982, 2009.
    • E. Sevkat, J. Li, B. Liaw and F. Delale, “A Statistical Model of Electrical Resistance of Carbon Fiber Reinforced Composites Under Tensile Loading,” Composite Science and Technology, Vol. 68, Issues 10-11, pp. 2214-2219, 2008.
    • L. Shen, J. Li, B.M. Liaw, F. Delale and J.H. Chung, “Modeling and Analysis of the Electrical Resistance Measurement of Carbon Fiber Polymer-Matrix Composites,” Composite Science and Technology, Vol. 67, Issues 11-12, pp. 2513-2520, 2007.
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