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Education

  • Ph.D., Engineering Mechanics, Columbia University, 1987                                    
  • M.S., Civil Engineering (Structures),  Polytechnic Institute of New York, 1981
  • B.S., Civil Engineering, LaFayette College, 1979 

Teaching Interests

Professor Jacobs’ teaching is focused on fundamental engineering mechanics classes at the undergraduate and graduate levels including statics, rigid body dynamics, mechanics of materials, and wave propagation in solids. His research is student-focused and actively involves both graduate and undergraduate students.

Research Interests

Professor Jacobs’ research focuses on the development of quantitative methodologies for the nondestructive evaluation and life prediction of structural materials. This includes the application of nonlinear ultrasound for the characterization of fatigue, creep, stress-corrosion, thermal embrittlement and radiation damage in metals, and linear ultrasonic techniques to quantify microstructure and progressive micro-cracking in concrete.

Recent Publications

  • Nagy, P., Jacobs, L.J., Köhler, B., and Schubert, F. “Numerical evaluation of sideband peak count method for nonlinear ultrasonic damage detection,” NDT&E International, Vol. 159, 103625, 2026.
  • Wang, Junzhen, Carius, H., Nagy, Peter, Kim, Jin-Yeon, and Jacobs, L.J., “Single-sided non-collinear shear wave mixing for material characterization,” Applied Physics Letters Vol. 128, 022201, 2026.
  • Wang, Junzhen, Nagy, Peter, Carius, H., Kim, Jin-Yeon, and Jacobs, L.J., “Analytical and numerical modeling of non-collinear wave mixing due to material and interface nonlinearity,” Journal of the Acoustical Society of America, Vol. 158 (4), 3210-3225, 2025.
  • Herburger, D., Kim, Jin-Yeon, Lark, N., and Jacobs, L.J., “Evaluating effects of microstructure and porosity on elastic anisotropy of additively manufactured materials using ultrasonic techniques,” Journal of the Acoustical Society of America, Vol. 157 (3), 2018-2028, 2025.
  • Kumar, Devin, Kurtis, K.E., Jacobs, L.J. and Sherman, R.J. “Comparison of nondestructive methods for detecting reinforcing bar placement,” Materials and Structures, 58:138, 2025.