Dr. Yao and his coworkers have published over 100 technical papers and won a number of awards including

The Outstanding Paper Award “Convex Laser Forming with High Certainty,” by Li, W. and Yao, Y.L., at North American Manufacturing Research Conference, Lexington, KY, May 2000.

Best Paper Award “Advances in Micro-scale Laser Shock Peening,” by Yao, Y.L., Zhang, W., and Chen, H., at the 5^th Int. Conf. on Frontiers in Design and Manufacturing, Dalian, China, July 2002.

The 1^st Place Award, Student Paper Contest, “Spatially Resolved Characterization of Residual Stress Induced by Micro Scale Laser Shock Peening,” by Chen, H., Yao, Y. L., and Kysar, J., at 21^st  Int. Congress on Applications of Lasers and Electro-Optics (ICALEO ‘03): Conf. on Laser Materials Processing, Jacksonville, FL, Oct. 2003.

Li, W., Bao, J., and Yao, Y. L., "Investigation of Geometric Shapes and Mechanical Properties of Laser-Formed Workpiece," Int. J. High Temperature Material Processes, Special Issue on Laser Materials Processing, edited by Yao, Y. L., invited paper, Vol. 4, No.2, 2000, pp.253-290.

Li, W., and Yao, Y. L., "Numerical and Experimental Study of Strain Rate Effects in Laser Forming," ASME Trans. J. of Manufacturing Science and Engineering, Vol. 122, No. 3, 2000, pp. 445-451. PDF (243 kB)

Li, W., and Yao, Y. L., "Laser Forming with Constant Line Energy," Int. J. Advanced Manufacturing Technology,  Pergamon, Vol. 17, 2001, pp. 196-203.

Bao, J., and Yao, Y. L., "Analysis and Prediction of Edge Effects in Laser Bending," ASME Trans. J. of Manufacturing Science and Engineering, Vol. 123, No. 1, 2001, pp. 53-61.PDF (236 kB)

Cheng, J., and Yao, Y. L., “Cooling Effects in Multiscan Laser Forming," SME J. of Manufacturing Processes, Vol.3, No.1, 2001, pp. 60-72. PDF (970 kB)

Li, W., and Yao, Y. L., "Laser Bending of Tubes: Mechanism, Analysis, and Prediction," ASME Trans. J. of Manufacturing Science and Engineering, Vol. 123, No. 4, 2001, pp. 674-681. PDF (296 kB)

Li, W., and Yao, Y. L., "Numerical and Experimental Investigation of Convex Laser Forming Process," SME J. of Manufacturing Processes, Vol. 3, No.2, 2001, pp. 73-81. PDF (758 kB)

Cheng, J., and Yao, Y. L., “Microstructure Integrated Modeling of Multiscan Laser Forming," ASME Trans. J. of Manufacturing Science and Engineering, Vol. 124, No. 2, May 2002, pp. 379-388. PDF (588 kB)

Liu, C., and Yao, Y. L., “Optimal and Robust Design of Laser Forming Process,” SME J. of Manufacturing Processes, Vol. 4, No.1, 2002, pp. 52-66. PDF (291 kB)

Liu, C., Yao, Y. L., and Srinivasan, V., “Optimal Process Planning for Laser Forming of Doubly Curved Shapes,” ASME Trans. J. of Manufacturing Science and Engineering, Vol. 126, 2004, pp. 1-9. PDF (1609 KB)

Cheng, J., and Yao, Y. L., “Process Design of Laser Forming for Three Dimensional Thin Plates," ASME Trans. J. of Manufacturing Science and Engineering, Vol. 126, No. 2, May 2004, pp.217-225. PDF (1251 kB)

Cheng, J., and Yao, Y. L., “Process Synthesis of Laser Forming by Genetic Algorithms," Int. J. of Machine Tools and Manufacture, UK, Vol. 44, No.15, 2004, pp.1619-1628. PDF (419 kB)

Cheng. P, and Yao, Y. L., “The Influence of Sheet Metal Anisotropy on Laser Forming Process,” ASME Trans. J. of Manufacturing Science and Engineering, 2005, in press. PDF (1839 kB)

Fan, Y., Yang, Z., Cheng, P., Egland, K., and Yao, Y. L., “Numerical and Experimental Investigation of Microstructure Evolution and Mechanical Behavior of Steel in Laser Forming,” ASME Trans. J. of Manufacturing Science and Engineering, 2005, accepted. PDF (2172 kB)

Cheng, P., Fan, Y., Zhang, J., Mika, D., Graham, M., Zhang, W., Marte, J., Jones, M., Yao, Y. L., “Analysis and Synthesis of Laser Forming Process of Varying Thickness Plate,” ASME Trans. J. of Manufacturing Science and Engineering, 2005, accepted. PDF (2238 kB)

Cheng, P., Birnbaum, A. J., and Yao, Y. L., “Correction of Butt-Welding Induced Distortion by Laser Forming”, SME J. of Manufacturing Process, 2005, to be submitted. PDF (765 kB)

Birnbaum, A. J., Cheng, P., and Yao, Y. L., “Effects of Clamping on Laser Forming Process”, ASME J. of Manufacturing Science and Engineering, 2005, submitted. PDF (207 kB)

Micro-scale Laser Shock Penning (µLSP) and Micro-scale Laser Peen Forming (µLPF):

Zhang, W., and Yao, Y. L., “Micro-scale Laser Shock Processing of Metallic Components,” ASME Trans. J. of Manufacturing Science and Engineering, Vol. 124, No. 2, May 2002, pp. 369-378. PDF (595 kB)

Zhang, W., and Yao, Y. L., “Micro-scale Laser Shock Processing: Modeling, Testing, and Microstructure Characterization,” SME J. of Manufacturing Processes, Vol. 3, No.2, 2001, pp. 128-143. PDF (1593 kB)

Zhang, W., Chen, H., and Yao, Y. L., "Advances in micro-scale laser peening technology," The 5th Internationla Conference on Frontiers of Design and Manufacturing(ICFDM'2002), Dalian, China, July 2002.

Zhang, W., Yao, Y. L., and Noyan, I. C., “Microscale Laser Shock Peening of Thin Films, Part 1: Experiment, Modeling and Simulation,” ASME Trans. J. of Manufacturing Science and Engineering, Vol. 126, February 2004, pp. 10-17. PDF (303 kB)

Zhang, W., Yao, Y. L., and Noyan, I. C., “Microscale Laser Shock Peening of Thin Films, Part 2: High Spatial Resolution Material Characterization,” ASME Trans. J. of Manufacturing Science and Engineering, Vol. 126, February 2004, pp. 18-24. PDF (266 kB)

Chen, H., Yao, Y. L., and Kysar, J., “Spatially Resolved Characterization of Residual Stress Induced by Micro Scale Laser Shock Peening,” ASME Trans. J. of Manufacturing Science and Engineering, Vol. 126, No. 2, May 2004, pp.226-236. PDF (437 kB)

Chen, H. and Yao, Y. L., “Modeling Schemes, Transiency, and Strain Measurement for Microscale Laser Shock Processing,” SME J. of Manufacturing Processes, Vol.6, No.2, 2004, pp.155-169. PDF (6495 kB)

Chen, H., Kysar, J., and Yao, Y. L., “Characterization of Plastic Deformation Induced by Micro Scale Laser Shock Peening,” ASME Trans. J. of Applied Mechanics, Vol.71, No.3, 2004, pp.713-723. PDF (711 kB)

Chen, H., Wang, Y., Kysar, J. W., Yao, Y. L., “Systematical Characterization of Material Response to Micro Scale Laser Shock Peening,” Special Issue on Micro/Meso Manufacturing, ASME Trans. J. of Manufacturing Science and Engineering, Vol.26, No.4, Nov. 2004, pp.740-749.

Chen, H., Wang, Y., Kysar, J. W., Yao, Y. L., “Advances in Micro Scale Laser Shock Peening,” Tsinghua Science and Technology, Journal, Vol. 9, No. 5, Oct. 2004, pp.506-518.

Chen, H., Yao, Y. L., Kysar, J. W., Noyan, I. C., and Wang, Y., “Fourier Analysis of X-ray Microdiffraction Profiles to Characterize Laser Shock Peened Metals,” Int. J. of Solids and Structures, Vol. 42, 2005, pp.3471-3485. PDF (469 kB)

Wang, Y., Chen, H., Kysar, J. W., and Yao, Y. L., “Response of Thin Films and Substrate to Micro Scale Laser Shock Peening,” ASME Trans. J. of Manufacturing Science and Engineering, 2004, submitted. PDF (1021 kB)

Chen, H., Kysar, J. W., Yao, Y. L., and Wang, Y., “Simulation and Experimental Characterization of Three Dimensional Plastic Deformation Induced by Microscale Laser Shock Peening,” ASME Trans. J. of Applied Mechanics, 2005, to be submitted.

Wang, Y., Fan, Y., Vukelic, S., and Yao, Y. L., “Energy Level Effects on Deformation Mechanism in Micro-scale Laser Peen Forming”, SME J. of Manufacturing Process, 2005, to be submitted. PDF (623 kB)

Y. Fan, Y. Wang, S. Vukelic, Y. L. Yao, “Wave-solid interactions in shock induced deformation processes,” J. Appl. Physi., 2005, submitted. PDF (474 kB)

Laser Micro- and meso-machining/Machining and laser ablative cleaning:

Di Pietro, P., and Yao, Y. L., "An Investigation into Characterizing and Optimizing Laser Cutting Quality - A Review," Int. J. Machine Tools & Manufacture, Pergamon, Vol. 34, No. 3, 1994, pp. 225-243.

Di Pietro, P., and Yao, Y. L., "Effects of Workpiece Boundary and Motion on Laser Cutting Front Phenomena," J. Materials Processing Technology, Elsevier Scientific, Vol. 44, 1994, pp. 237-245.

Di Pietro, P., and Yao, Y. L., "A Numerical Investigation into Cutting Front Mobility in CO₂ laser Cutting," Int. J. Machine Tools & Manufacture, Pergamon, Vol. 35, No. 5, 1995, pp. 673-688.

Di Pietro, P., and Yao, Y. L., "A New Technique to Characterize and Predict Laser Cut Striations," Int. J. Machine Tools & Manufacture, Pergamon, Vol. 35, No. 7, 1995, pp. 993-1002.

Di Pietro, P., and Yao, Y. L., "Improving Laser Cutting Quality for Two-Dimensional Contoured Paths," ASME Trans. J. of Manufacturing Science and Engineering, Vol. 120, No. 3,  1998, pp. 590-599.

Chen, K, and Yao, Y. L., “Striation Formation and Melt Removal in Laser Cutting Process,” J. Manufacturing Processes, Society of Manufacturing Engineers, Vol. 1, No. 1, 1999, pp. 43-53.

Chen, K, Yao, Y. L., and Modi, V., “Numerical Simulation of Oxidation Effects in Laser Cutting Process,” Int. J. Advanced Manufacturing Technology, Springer-Verlag, Vol. 15, 1999, pp. 835-842.

Di Pietro, P., Yao, Y. L., and Jeromin, A., "Model-Based Optimization for Laser Cutting under Transient Conditions,” J. Materials Processing Technology, Elsevier Scientific, Vol. 97, 2000, pp.  158-167.

Chen, K., and Yao, Y. L., “Process Optimization of Pulsed Laser Micromachining with Applications in Medical Device Manufacturing,” Int. J. Advanced Manufacturing Technology, Springer-Verlag, Vol. 16, 2000, pp.243-249.

Chen, K., and Yao, Y. L., “Interactive Effects of Reactivity and Melt Flow in Laser Machining,” Int. J. High Temperature Material Processes, Special Issue on Laser Materials Processing, edited by Yao, Y. L., invited paper, Vol. 4, No.2, 2000, pp.227-252.

Chen, K., Yao, Y. L., and Modi, V., “Gas Jet - Workpiece Interactions in Laser Machining,” ASME Trans. J. of Manufacturing Science and Engineering, Vol. 122, No. 3, 2000, pp. 429-438. PDF (529 kB)

Chen, K., Yao, Y. L., and Modi, V., “Gas Dynamic Effects on Laser Cutting Quality,” SME J. of Manufacturing Processes, Vol. 3, No. 1, 2001, pp. 38-49. PDF (1020 kB)

Lu, X., Yao, Y. L., and Chen, K., "A Low Diffraction Laser Beam as Applied to Polymer Ablation," J. of Laser Applications, Laser Institute of America, Vol. 13, No. 5, 2001, pp.209-217.

Zhang, W., Yao, Y. L., and Chen, K., “Modeling and Analysis of UV Laser Micromachining of Copper,” Int. J. Advanced Manufacturing Technology,  Pergamon, Vol. 18, 2001, pp.323-331. PDF (302 kB)

Yao, Y. L., Chen, H., and Zhang, W., “Time Scale Effects in Laser Material Removal --- A Review,“ Int. J. Advanced Manufacturing Technology, UK, 24 November 2004 published online first. PDF (1041 kB)

Zhang, J., Wang, Y., Cheng, P., and Yao, Y.L., “Effect of Pulsing Parameters on Laser Ablative Cleaning of Copper Oxides,” J. Applied Physics, submitted. PDF (1805 kB)

Education in Non-traditional Manufacturing:

Yao, Y. L., Cheng, G. J., Rajurkar , K. P., Kovacevic, R., Feiner, S., and Zhang, W., “A Web based Curriculum Development on Non Traditional Manufacturing with Interactive Features,” International Journal of Engineering Education, in press. PDF (435 kB)

Yao, Y. L., Cheng, G. J., Rajurkar , K. P., Kovacevic, R., Feiner, S., and Zhang, W., “Combined Research and Curriculum Development of Nontraditional Manufacturing,” European J. Engineering Education, accepted. PDF (581 kB)

Automatic Cell Recognition:

Long, X., Cleveland, W. L., and Yao, Y. L., “Automatic Detection of Unstained Viable Cells in Bright Field Images Using a Support Vector Machine with an Improved Training Procedure,” Computers in Biology and Medicine,  2004, in press. PDF (1540 kB)

Long, X., Cleveland, W. L., and Yao, Y. L., “A New Preprocessing Approach to Cell Recognition,” IEEE Trans. on Information Technology in Biomedicine, 2004, in press.

Long, X., Cleveland, W. L., and Yao, Y. L., “Effective Automatic Recognition of Cultured Cells in Bright Field Images Using Fisher’s Linear Discriminant Preprocessing,” Image and Vision Computing, 2004, accepted. PDF (688 kB)

Robotics and Control:

Yao, Y. L., "Transient Lateral Motion of Robots in Cylindrical Part Mating," Robotics and Computer-Integrated Manufacturing, Int. J., Pergamon, Vol. 8, No. 2, 1991, pp. 103-111.

Yao, Y. L., and Mohd Yusoff, M. R., "A CAD Based Error Mapping and Layout Facility for Precision Robotic Operations," Robotics and Computer-Integrated Manufacturing, Int. J., Pergamon, Vol. 9, No. 6, 1992, pp. 505-511.

Yao, Y. L., Korayem, M. H., and Basu, A., "Maximum Allowable Load of Flexible Manipulators for Given Dynamic Trajectory," Robotics and Computer-Integrated Manufacturing, Int. J., Pergamon, Vol. 10, No. 4, 1993, pp. 301-309.

Yao, Y. L., and Wu, S. M., "Development of An Adaptive Position/Force Controller for Robot-Automated Composite Tape-laying," ASME Trans. J. of Engineering for Industry, Vol. 115, No. 3, 1993, pp. 352-358.

Yao, Y. L., and Wu, S. M., "Recursive Calibration of Industrial Manipulators by Adaptive Filtering," ASME Trans. J. of Engineering for Industry, Vol. 117, No. 3, 1995, pp. 406-411.

Korayem, M. H., Yao, Y. L., and Basu, A., "Application of Symbolic Manipulation to Inverse Dynamics and Kinematics of Elastic Robots,” Int. J. Advanced Manufacturing Technology, Springer-Verlag, Vol. 9, No. 5, 1994, pp. 343-350.

Fang, X. D., and Yao, Y. L., "Appropriate Introduction of Computer Control to Mechanical Engineering Students," Int. J. of Mechanical Engineering Education, Vol. 23, No. 4, 1995, pp. 273-284.

Soltz, M., Yao, Y. L., and Ish-Shalom, J., “Investigation of a 2-D Planar Motor Based Machine Tool Motion System,” Int. J. Machine Tools & Manufacture, Pergamon, Vol. 39, 1999, pp. 1157-1169.

Huang, Z., and Yao, Y. L., “Extension of Usable Workspace of Rotational Axes in Robot Planning,” Robotica, Cambridge Univ. Press, Vol. 17, 1999, pp. 293-301.

Huang, Z., and Yao, Y. L., “A New Closed-Form Kinematics of the Generalized 3-DOF Spherical Parallel Manipulator,” Robotica, Cambridge Univ. Press, Vol. 17, 1999, pp. 475-485.