1. Edwards, P. D., & Ramulu, M. (2015). Material flow during friction stir welding of Ti-6Al-4V. Journal of Materials Processing Technology, 218, 107 115. doi:https://dx.doi.org/10.1016/j.jmatprotec.2014.11.046
2. Gangwar, K., Ramulu, M., Cantrell, A., & Sanders, D. G. (2016). Microstructure and Mechanical Properties of Friction Stir Welded Dissimilar Titanium Alloys: TIMET-54M and ATI-425. Metals, 6(10), 252.
3. Gururaja, S., Ramulu, M., & Pedersen, W. (2013). Machining of MMCs: a review. Machining Science and Technology, 17(1), 41–73.
4. Mohan, R., Ramulu, M., Kim, T. J., & Geskin, E. S. (1997). State of the art of research and development in abrasive waterjet machining.
5. Pahuja, R., Ramulu, M., & Hashish, M. (2016). Abrasive Waterjet Profile Cutting of Thick Titanium/Graphite Fiber Metal Laminate. Retrieved from https://dx.doi.org/10.1115/IMECE2016-67136
6. Ramulu, M., Branson, T., & Kim, D. (2001). A study on the drilling of composite and titanium stacks. Composite Structures, 54(1), 67–77. doi:10.1016/S0263-8223(01)00071-X
7. Ramulu, M., & Kobayashi, A. S. (1985). Mechanics of crack curving and branching—a dynamic fracture analysis. International Journal of Fracture, 27(3), 187–201.
8. Wang, D. H., Ramulu, M., & Arola, D. (1995). Orthogonal cutting mechanisms of graphite/epoxy composite. Part I: unidirectional laminate. International Journal of Machine Tools and Manufacture, 35(12), 1623–1638. doi:https://dx.doi.org/10.1016/0890-6955(95)00014-O
9. Pahuja, Rishi, and M. Ramulu. "Abrasive water jet machining of Titanium (Ti6Al4V)–CFRP stacks–A semi-analytical modeling approach in the prediction of kerf geometry" Journal of Manufacturing Processes 39 (2019): 327–337.
The full list of publications can be found at https://scholar.google.com/citations?user=ZAxgNpYAAAAJ&hl=en, http://depts.washington.edu/mstlab/publications/
Dr. Ramulu has successfully supervised over 250 Masters and PhD students so far. The PhD graduates under his supervision include:
Dr. D. H. Wang, 1993;
Title: Machining Characteristics of Graphite/Epoxy Composites;
Current: Professor, Department of Mechanical Engineering, Kyungnam University, Korea;
http://mecha.kyungnam.ac.kr/prof/dhwang/
Dr. S.P. Raju, 1994;
Title: Theoretical and Experimental Investigations into the Material Removal Process During Abrasive Waterjet Cutting;
Current: The Bosch USA
Dr. C.W. Wern, 1995;
Title: Fiber and Fiber-Matrix Interface Effects on the Orthogonal Cutting of Fiber Reinforced Plastics;
Current: Associate Professor, Department of Mechanical Engineering, Portland State University, OR; http://www.me.pdx.edu/~wernc/
Dr. Dwayne Arola, 1996;
Title: Abrasive Waterjet Manufacturing Effects on the Structural Integrity of Fiber-Reinforced Plastics;
Current: Professor, Department of Materials Science & Engineering, University of Washington, Seattle, WA
Dr. Farzad Zafari, 1997;
Title: Experimental and Numerical Investigation of Elastic-Plastic Mixed Mode Fracture in High Strength Aluminum Alloys;
Current: Technical Fellow, Damage Tolerance, The Boeing Company
Dr. Zihong Guo, 1998;
Title: Experimental and Numerical Investigation of Machining Damage in Structural Ceramics;
Current: Director of Alliance Management, Intellectual Ventures, Bellevue, WA
Dr. Patrick Stickler, 2001;
Title: Experimental and Numerical Investigation of Transversely Stitched T-joint.;
Current: Founder and Chief Engineer of Cascade View Residential Structural Engineering, PLLC, Seattle.
Dr. Dave (Dae-wook) Kim, 2002;
Title: Machining and Drilling Of Hybrid Composites;
Current: Professor and Mechanical Engineering Program Coordinator, Washington State University, Vancouver, WA; https://labs.wsu.edu/dave-kim/
(Late) Dr. Kunaporn Sawalee, 2002;
Title: An Experimental and Numerical Analysis of Waterjet Peening of 7075-T6 Aluminum Alloy;
Formerly, Assistant Professor, Institute of Engineering and Resources Technology Walailuk, Thailand;
Expired in August 2005
Dr. William Pedersen, 2003;
Title: Machinability of Functionally Gradient Al/SiC Metal Matrix Composite;
Current: Director of Engineering at Lake Superior Consulting, Duluth, Minnesota.
Dr. Franna Pitt, 2005;
Title: Effect of Simulated Superplastic Forming Processing on the Mechanical Properties of Three Titanium Alloys;
Retired, Formerly Associate Technical Fellow, The Boeing Company, Seattle
Dr. Suhasini Gururaja, 2008;
Title: Analytical Modeling of Orthogonal Cutting of FRPs;
Current: Associate Professor, Aerospace Engineering, Auburn University, AL
Dr. Dan Sanders, 2008;
Title: – Development of Friction Stir Welding Combined with Superplastic Forming Processes for the Fabrication of Titanium Structures;
Retired, Senior Technical Fellow, Boeing Research & Technology (BR&T), Metallic Materials & Processes, The Boeing Company, Seattle
Dr. Paul D. Edwards, 2010;
Title: Friction Stir Welding of Ti-6Al-4V Sheet and Plate for Aerospace Structures;
Current: Director, Materials Engineering, Tesla Motors, Pala Alto, CA
Dr. Timothy M. Briggs, 2010;
Title: Rate Dependent and Low Velocity Impact Characterization of Composites;
Current: Research Scientist, Sandia National Laboratories, CA
Dr. Alex M Chillman, 2010;
Title: Energy-Based Modeling of Ultra High-Pressure Waterjet Surface Preparation Processes Including Milling, Peening, and Texturing Applications;
Current: Director, Product Development, Fluke Materials, Seattle, WA.
Dr. Heechang Bae, 2011;
Title: Experimental Study of Shot Peening Process and its Effects on High Cycle Fatigue in Aerospace Materials;
Current: Assistant Professor, Mechanical Engineering & Mechanical Engineering Technology, Eastern Washington University, Cheney, WA
Dr. Julio Davis, 2012;
Title: Analytical Modeling and Applications of Residual Stresses Induced by Shot Peening;
Current: Stress Engineer, SMA, The Boeing Company, Everett, WA
Dr. Alex P O’Connor, 2013;
Title: Machinability of Aerospace Tooling Materials For Composite Repairs;
Current: The Boeing Company, Machining Technology R&D, Auburn, WA
Dr. Eshetu D Eneyew, 2014;
Title: Experimental Study of Damage and Defect Detection during Drilling of CFRP Composites;
Current: NDT Engineer, The Boeing Company, Charleston, SC;
Adjunctive Professor of Physics, College of Charleston, Charleston, SC
Dr. Jeffery Miller, 2014;
Title: Investigation of Machinability and Dust Emissions in Edge Trimming of Laminated Carbon Fiber Composites;
Current: Senior Technical Fellow, The Boeing Company, Seattle
Dr. Neha Kulkarni, 2015;
Title: Study the Mechanical Performance of Similar and Dissimilar Titanium Alloy Joints Formed by Diffusion Bonding and Friction Stir welding Processes;
Current: Honeywell Aerospace, Redmond, WA
Dr. Todd W. Morton, 2015;
Title: Solid State Joining of Dissimilar Titanium Alloys;
Current: The Boeing Company, Seattle
Dr. Renuka Prabhakar, 2017;
Title: Advancements In Process Development And Mechanical Properties Of Recycled Glass Building Materials Through Experimentation And Analytical Modeling;
Current: President and CEO EnVitrum;
Lecturer, Everett Community College, Everett, WA.
Dr. Kapil D. Gangwar, 2017;
Title: Friction Stir Welding of Dissimilar Titanium Alloys: Mechanical and Metallurgical Characterization;
Current: Assistant Professor, Oregon Institute of Technology, Klamath Falls, Oregon
Dr. Stefan Hovik, 2019;
Project: Low Velocity Impact Damage Modeling and Simulation of Titanium-Graphite Composite Laminate;
Current: The Boeing Company
Dr. Rishi Pahuja, 2018;
Project: Machining of metal composite stacks and hybrid aerospace materials through milling and Abrasive Water Jet;
Current: Caltech Optical Observatories, CA
Dr. Harinder. S. Oberoi, 2019;
Project: Machined Surface Integrity Effects on the Strength Properties, Damage Evolution and Fatigue Strength of Composite Laminates;
Current: 777-X Program, Manufacturing, The Boeing Company
Dr. Nishita Anandan, 2019;
Project: Study of Machinability of Metal Matrix Composites and its Effect on Surface Integrity;
Current: Post Doctoral Fellow in Materials Lab, Mechanical Engineering, University of Washington, WA.
Dr. Bryan Ferguson, 2020;
Project: Modeling and Experimental Analysis of Superplastic Forming and Diffusion Bonding;
Current: Research Scientist, Lawrence Livermore Laboratory, CA
Dr. Sean Ghods, 2021, Ph.D. in Material Science and Engineering (Co-advising with Prof D. Arola);
Project: Origins of Variability in Electron Beam Powder Fusion of Ti6Al4V;
Current: Reliability Engineer, Microsoft Corporation, WA
Dr. Sai Krovvidi, 2021;
Project: Thermomechanical Modeling of the Percussive Riveting Process;
Current: Structures Engineer, Textron Aviation Defense, Wichita, KS
Dr. Abdullah Alajmi, 2021;
Project: Characterization and Modeling of the Leading Edge Erosion of Wind Turbine Blades due to Sand Particles Impingement;
Current: Assistant Professor, Kuwait University, Kuwait City, Kuwait.