Resume Name: Roger B. Clough Born 9/7/41
Roger Clough has introduced a number of innovations to the fields of nondestructive evaluation,using acoustic emission, and the mechanical characterization of materials. He was co-inventor of the multichannel acoustic emission technique, which is now accepted world-wide as the theoretical basis of laboratory acoustic emission measurements. He was one of the prime contributors in advancing and implementing the energy theory of acoustic emission into a practical quantitative method of source characterization in complex structures. In addition, he pio- neered its use in monitoring industrial applications such as electron beam surface modification, laser drilling, fracture of materials during processing, and the measurement of interface strength in fiber composites. These methods are being widely adopted by other researchers. In the area of mechanical properties of materials, he developed a dislocation theory of multiaxial plasticity, and more recently has developed a theory of the densification and distortion of particulate materials which is being implemented in finite element calculations in several outside laboratories that are studying the consolidation of metal powders. He : developed the modern theory of acoustic emission with John Simmons Chairman, NDE In the Nuclear Industry Edited book, Quantitative NDE in the Nuclear Industry International Advisory Committee, 14th World Conference on NDT Member, ASME Committee on Materials Characterization Was asked to contribute definition of Acoustic Emission for Encyclopeia of Advanced Materials Isreal Negev Reaearch followed up on use of his using his method of measuring proportional limit of materials. Education: B.S. (Cum Laude), (1963), Metallurgical Engineering, Lafayette College, Alcoa Scholar, member of Phi Beta Kappa and Sigma Xi. MS (1965) and PhD (1967), Metallurgical Engineering (Physics minor), University of Arizona. Fully supported by NASA 4-Year Doctoral Fellowship. Work Experience: (1962-1963) Summer student researcher, Westinghouse Atomic Research (Bettis), Pittsburgh. Research subject: multiaxial creep. (1966-69) RCA Sarnoff Laboratories, Princeton, NJ. Research subject: vapor-phase epitaxial growth of III-V compounds (1969-2000) National Institute of Standards and Technology (NIST). Research subjects at NIST: deformation and fracture of materials and correlations of these with microstructure and acoustic emission . Applications of acoustic emission to industrial processes (electron beam surface resolidification, laser drilling and hydrogen embrittlement cracking). Publications: About 70 publications, including the book "Quantitative NDE in the Nuclear Industry". Professional and International Recognition: 1974-1984, Member of Advisory Board, series of conferences on NDE in the Nuclear Industry. In 1982, Chairman of the Fifth International Conference on NDE in the Nuclear Industry held in La Jolla, Ca, sponsored by ASM, ASNT, and ASN. Selected to write the article on "acoustic emission" for the Encyclopedia of Advanced Materials (1994). Member of International Advisory Board, 14th World Conference on Non-Destructive Testing. Listed in "Marquis' Who's Who in Science and Engineering". Professional Memberships: American Society for Metals, the American Society for Testing and Materials, American Society of Mechanical Engineers, Sigma Xi and Phi beta Kappa. Patent: Composite Solder, (May 28, 1996) No. 5,520,752 with George Lucey Jr. and Jennie S. Hwang Bibliography 1. R. B. Clough, "The Activation Energy for Plastic Flow in Stress Relaxation," Physica Status Solidi, Vol.17, p. K175 (1966). 2. R.B. Clough and J. J. Tietjen, "Vapor-Phase Growth of GaAs1-xSbx Alloys Using Arsine and Stibine," Trans. Met. Soc. AIME<-"> Vol. 245, p.583 (1969). 3. J. J. Tietjen, H. P. Maruska, and R. B. Clough, "The Preparation and Properties of Vapor- Deposited InAs(1-x)P(x) Alloys Using Arsine and Phosphine," Journal of The Electrochemical Society Vol. 116, p. 492 (1969). 4. R. B. Clough and L. J. Demer, "Stress Relaxation and the Activation Energy for Plastic Flow in Solids - Commercially-Pure Aluminum," Physica Status Solidi, Vol. 36, p. 221 (1969). 5. R.B.Clough and G. W. Geil, Appendix to "Temperature Changes in Specimens in Microplasticity Tests", Metallurgical Transactions, Vol.1, p. 1845 (1970). 6. R. B. Clough and L. J. Demer, "Anomalous Dynamic Strain-Aging in Supersaturated Aluminum Alloys, " in "Proceedings of the Second International Conference on the Strength of Metals and Alloys", ASM, p. 356 (1970). 7. C. J. Nuese, D. Richman, and R. B. Clough, "The Preparation and Properties of Vapor-Grown In-Ga-P Alloys", Metallurgical Trans., Vol.2, p. 789, (1971). 8. R. B. Clough, "Mobile Dislocation Density and Velocity in Plastically Deformed Aluminum at Room Temperature," Scripta Metallurgica, Vol.6, p. 293, (1972). 9. R. B. Clough and J. A. Simmons, "A Theory of Multiaxial Plasticity Based on Integral Dislocation Dynamics," <+">Acta Metallurgica, <-">Vol. 22, pp. 513-521 (1974). 10. R. B. Clough and J.A. Simmons, "Thermodynamics of Dislocation Motion in Multiaxial Stress Fields," in "Rate Processes in Plastic Deformation " (Proceedings of the Dorn Memorial Symposium), J. C. M. Li and A. K.Mukherjee (eds.), ASM, (1975). (Invited paper.) 11. R.B. Clough, "A New Method for Determination of Proportional Limit and Machine Stiffness ", Journal of Testing and Evaluation, ASTM, Vol. 3, No.2, p.143 (1975). 12. R. B. Clough, "The Effects of Specimen Size and Microstructure on the Larson-Miller Parameter," Scripta Metallurgica, Vol. 9, p. 1325, (1975). 13. R. B. Clough, "Rational Basis and New Methods for Proportional Limit, Machine Stiffness, Critical Stress Intensity and Crack Velocity Measurements," in Recent Developments in Mechanical Testing, STP 608, ASTM (1976). 14. R. B. Clough, "A Note on the Measurement of Proportional Limit Under Multiaxial Stress", Journal of Testing and Evaluation, Vol.4, p. 139 (1976). 15. J.A.Simmons and R. B. Clough, "Theoretical Aspects of Acoustic Emission Spectral Measurements," Proceedings of the Eight World Conference on Nondestructive Testing, Cannes, France, Sept., pp. 1-8 (1976). 16. J. A. Simmons and R.B. Clough, "Theoretical Elements of Acoustic Emission Spectra," Proceedings of the ARPA/AFML Review of Progress in Quantitative NDE, Tech. Report AFML- TR-77-44 (1977). 17. R. B. Clough, D. J.Chwirut and R. L. Bloss, "Impact Testing of Frangible Couplings," NBS Tech. Report 10-810 (1972). 18. D. C. Robinson and R. B. Clough, "Evaluation of the Thrown Objects Test For Proposed Lawnmower Safety Standard," NBS Tech. Report<+"> <-">76-1022 (1976). 19. "Acoustic Emission in Nuclear Applications--The State of the Art", Nondestructive Evaluation in the Nuclear Industry, Salt Lake City, (Feb. 1980) (Invited paper) 20. D. G. Eitzen, F. R. Breckenridge, R. B. Clough, E. R. Fuller, N. Hsu and J. A. Simmons, "Fundamental Developments for Quantitative Acoustic Emission Measurements," Electric Power Research Institute, Report RP608-1, Palo Alto, CA (1981). 21. L. J. Swartzendruber, W. J. Boettinger, L. K. Ives, S. R.Coriell, D. B. Ballard, D. E. Laughlin, R. B. Clough, F. S. Biancaniello, P. J. Blau, J. W. Cahn, R. Mehrabian, G. Free, H. Berger and L. Mordfin, "NBS Nondestructive Evaluation of Nonuniformities in 2219 Aluminum Alloy Plate- Relation to Processing," NBS IR 2069 (1981). 22. D. G. Eitzen, F. R. Breckenridge, R. B. Clough, E. R. Fuller, N. N. Hsu and J. A. Simmons, "Summary of Fundamental Developments for Quantitative Acoustic Emission Measurements," Electric Power Research Institute, International Report No. N8-1877 (1981). 23. D. G. Eitzen, F. R. Breckenridge, R. B. Clough, E. R.Fuller, N.Hsu and J. A.Simmons, "Summary Report on the Electric Power Research Institute /National Bureau of Standards Joint Program on Acoustic Emission," EPRI International Report (1981). 24. J. A. Simmons and R. B. Clough, "Theory of Acoustic Emission," International Conference on Dislocation Modelling in Physical Systems, J. Hirth and M. Ashby (eds.), Pergamon Press, Oxford, p. 464 (1981).(Invited paper.) 25. R.B.Clough and J.A. Simmons, "Reproducible Acoustic Emission Signatures by Indentation in Steels," Materials Evaluation, Vol. 39, pp. 1026-1031 (1981). 26. R. B. Clough, J. Chang, and J. Travis, "Acoustic Emission Signatures and Source Microstructure Using Indentation Fatigue and Stress Corrosion Cracking in Aluminum Alloys," Scripta Met., Vol. 15, pp. 417-411 (1981). 27. D. Eitzen, F. Breckenridge, R. Clough, N. Hsu, T. Proctor and J. Simmons, "NBS Developments in Quantitative Acoustic Emission Measurements," Review of Progress in Quantitative NDE, Boulder, CO (Aug. 1981). 28. R. Mehrabian, H. N. G. Wadley, R. B. Clough, S.Fick, S. Ridder, M. Rosen, J. Simmons, "NDE and RSP: Research on Coupling Two Emerging Technologies," Tech. Report DARPA, DARPA Order No. 4275, (1982). 29. R. B. Clough and H. Wadley, "Indentation Loading Studies of Acoustic Emission from Temper and Hydrogen Embrittled A533B Steel," Met. Trans. A. Vol. 13A, pp. 1965-1975 (1982). 30. D. G. Eitzen, F. Breckenridge, R. B. Clough, N. N. Hsu, T. Proctor and J. Simmons, "NBS Developments in Quantitative Acoustic Emission Measurements", in Review of Progress in Quantitative NDE, D. Thompson (ed.), (1982) 31. R. B. Clough and J. A. Simmons, "Reproducible Acoustic Emission Signatures by Indentation in Steels," Review of Progress in Quantitative NDE, AFWAL Tech. Report AFWAL- TR- 81- 4080, (Sept.. 1981). 32. R. B. Clough and H. Wadley, "Indentation Loading Studies of Acoustic Emission from Temper and Hydrogen Embrittled A533B Steel," Report No. AERE- R-10400, U.K.A.E.A., Harwell, U.K. (Dec., 1981). 33. D. G. Eitzen, F. Breckenridge, R. Clough, N.Hsu, T. Proctor, J. Simmons, C. Stockton and H. Wadley, "Fundamental Developments in Acoustic Emission Measurements: The NBS Program," in "Quantitative NDE in the Nuclear Industry", R. B.Clough (ed.), American Soc. for Metals, Metals Park, OH, p. 315 (1983).(Invited paper.) 34. R. B. Clough (ed.), "Quantitative NDE in the Nuclear Industry", (Book), American Society for Metals, Metals Park, Ohio (1983). 35. R. B. Clough, H. N. G. Wadley and R. Mehrabian, "Heat Flow- Acoustic Emission - Microstructure Correlations in Rapid Surface Solidification,"<+">International Conf. on Applications of Lasers in Materials Processing, S. Copley and C. Metzbower (eds.), Los Angeles, Cal., American Society for Metals , Metals Park OH, p. 37 (1983).(Invited paper.) 36. R. B. Clough, H. N. G. Wadley, and R. Mehrabian, "Experimental Studies of the Dynamics of Rapid Solidification," Third Conference on Rapid Solidification Processing: Principles and Technologies III, R. Mehrabian (ed.), NBS, pp. 403-415 (1983) (Invited paper.) 37. R. B. Clough, F. S. Biancaniello and H. N. G. Wadley, "Acoustic Emission Studies of Electron Beam Melting and Rapid Solidification," in Applications and Development of NDE for Use in Materials Processing, O. Buck and S. Wolf (eds.), ASM, Metals Parks, OH p.27 (1984). 38. R. B. Clough and H. Wadley, "Acoustic Emission Studies of Dislocation Motion and Microfracture in Rapid Solidification in Aluminum Alloys," Review of Progress in Quantitative NDE, Pergamon Press, Oxford (1985). 39. R. B. Clough, H. N. G. Wadley, and R. J. Schaefer "Acoustic Emission Monitoring of Laser Drilling," in NDE of Microstructure for Process Control, H.. Wadley (ed.), Amer.Soc. for Metals, Metals Park, OH, p. 133 (1985) (Invited paper). 40. R. B. Clough and H. N. G. Wadley, "Acoustic Emission Monitoring of Dislocation Motion During Electron Beam Melting and Rapid Solidification of Aluminum Alloys", in Review of Progress in Quantitative Nondestructive Evaluation, D. O. Thompson and D. E. Chimenti (eds.), Vol.4B, p.661 (1985). 41. R. B. Clough, H. N. G. Wadley and F. S. Biancaniello, "Fracture Mechanisms in Single Crystal Composites", J. Acoustic Emission, p.569 (1986). 42. R. B. Clough, "The Energetics of AE Source Characterization", Materials Evaluation, Vol. 45, p. 556 (1987). 43. R. B. Clough, H. N. G. Wadley and R. Mehrabian, "Acoustic Emission Studies of Electron Beam Surface Modification of Aluminum", Met. Trans. Vol. 19B, pp.493-503 (1987). 44. R. B. Clough, F. S. Biancaniello and H. N. G. Wadley, "Measurement of Fiber Fracture and Fiber-Matrix Interface Shear Strengths in Metal Matrix Composites", Proc. of a Conf.on Nondestructive Testing and Evaluation of Advanced Materials and Composites, H. Mindlin (ed.), publ. by Battelle Mem. Inst., Columbus, OH (1987). (Invited paper.) 45. R.B. Clough, F.S. Biancaniello and H. Wadley, "Micromechanical Studies of Model Metal Matrix Composites", Materials Research Society Symposium Vol. 120, pp.35-44 (1988) (Invited paper.) 46. J. A. Simmons, R. B. Clough, E. D. Krasicka, F. Biancaniello, M. Rosen, T. Hsieh, and H.Wadley, "Composite Materials Interface Characterization", NBS Tech. Report (1987). 47. R. B. Clough, F. S. Biancaniello, H. Wadley, and U. R. Kattner, "Fiber and Interface Fracture in Single-Crystal Aluminum/SiC Fiber Composites", Metallurgical Transactions, Vol. 21A, pp. 2747- 2757 (1990). 48. J. J. Wlassich and R. B. Clough, "Investigation Into a Practical Grain Growth Model for Hot Isostatic Pressing", Proceedings, Second Int.Conf. on Hot Isostatic Pressing, R.Schaefer (ed.), ASM, (1991) (Invited Paper). 49. H. Wadley, R. J. Schaefer, A.H.Kahn, M.F.Ashby, R.B.Clough, Y.Geffen, and J.J. Wlassich, "Sensing and Modeling of Hot Isostatic Pressing of Copper Powders", Proceedings, Second Int. Conf. on Hot Isostatic Pressing, R. Schaefer, ed., ASM (1991). (Invited Paper.) 50. R. B. Clough and R. J. Schaefer, "The Micromechanics of Densification and Distortion", Fourth International Conf. on Isostatic Pressing, (ISO4), Stratford-Upon-Avon, UK, (1990), Paper No. 38. 51. H.Wadley, R.J.Schaefer, A.H.Kahn, M.F.Ashby, R.B.Clough, Y.Geffen, and J.J.Wlassich, "Sensing and Modeling of the Hot Isostatic Pressing of Copper Powders", Acta Metall.Mater, (1991), Vol. 39, pp. 979-986. 52. J. S. Hwang, G. Lucey, R. B. Clough and J. Marshall, "Futuristic Solders - Utopia or Ultimate Performance?", Surface Mount Technology, Vol. 5, No. 9 (Sept., 1991), pp. 40-41. (Invited paper). 53. A. Manor and R. Clough, "In-Situ Determination of Fiber Strength and Segment Length in Composites Using Acoustic Emission", Composites Science and Technology, Vol. 45 (1992) pp. 73-81. 54. R. Clough, "Application of Acoustic Emission to Studying Fiber Fragmentation as a Process in Single Fiber Composites", Review of Progress in Quantitative Nondestructive Evaluation, D. Thompson (ed.), Vol 11b , pp. 1515-1522 (1991) 55. R. B. Clough, "A Scalar Approach to Acoustic Emission", International Symposium on Vibroacoustic Characterization of Materials and Structures, P.K.Raju (ed.), ASME, (1992). (Invited paper.), pp.101-110. 56. R.B.Clough and R.F.Schaefer, "Effects of Shear Stress and Void Shape Change on the Distortion and Densification of Powder Compacts", Materials Science and Technology, Vol. 9, pp. 328-335, (1993). 57. R. B. Clough, R. Patel, J. S. Hwang, and G. Lucey, "Preparation and Properties of Reflowed Paste and Bulk Composite Solder", National Electronic Packaging and Production Conference (NEPCON West `92), Proc. Technical Program, Vol. III, pp.1256-1265. (Invited paper.) 58. R.B. Clough and J.A.Simmons, "Acoustic Emission", Encyclopedia of Advanced Materials, D. Bloor, R. Brook, M. Flemings, and S. Mahajan, (eds.) Pergamon Press, (1994) (Invited article) . 59. R. B. Clough, A. J. Bayba, A. J. Shapiro, and G. K. Lucey, Jr., "Boundary Layer Fracture of Copper/Composite Solder Interfaces", First ASME International Electronic Packaging Conference, (SUNY, Binghamton, NY, 9/93), ASME. 60. R. B. Clough, A. J. Bayba, and G. K. Lucey, Jr., "Finite Element Studies of Edge Shape and Boundary Conditions on the Stresses in Single Lap Shear Layers", First ASME International Electronic Packaging Conference, (SUNY, Binghamton, NY, 9/93), ASME. 61. Roger B. Clough, A.J. Shapiro and G. K. Lucey, Jr., "Effects of Residual Porosity On the Strength of Sn-Pb/Cu(6)Sn(5) PARTICULATE COMPOSITEs, Materials Science and Technology, Vol.10, (1994) pp.696-701. 62. John T. Barnett, Roger B. Clough and Benjamin Kedem, "Power Considerations in Acoustic Emission", Jour. of the Acoustic Society of America (1995),<-"> Vol. 98, pp.2070-2081. 63. R. B. Clough, A. J. Shapiro, A. J. Bayba, and G. K. Lucey, Jr., "Boundary Layer Fracture in Composite Solder Joints", Journal of Electronic Packaging, Vol. 117 (Dec. 1995), pp.270-274. 64. J.T. Barnett, R.B. Clough and B.Kedem, "Power Considerations in Acoustic Emission", Technical Research Report, T.R. 95-42, Univ. of Maryland (1995) 65. R.B. Clough and W.G. McDonough, "The Measurement of Fiber Strength Parameters in Fragmentation Tests By Using Acoustic Emission", Composites Science and Technology, Vol. 56, pp.1119-1127, (1996) 66. R. B. Clough and Richard J. Fields,"Yield Surface for Porous Metal Matrix Composites", for IUTAM "Symposium on Mechanics of Granular and Porous Materials", ` paper not ready at time of conference manual, so not in conf. proceedings other than abstract but sent to all participants afterward (Invited paper, Cambridge Univ., July 15-17 1996). For the published text, see No.68 below. 67. Charles Hagwood, Roger Clough and Richard Fields, "Estimation of the Stress- Threshold For the Inverse Weibull Power Law", IEEE Transactions of Reliability, Vol.48, pp.176-181 (1999). 68. R. B. Clough and R.J. Fields, "Effects of Bond Strength on Densification and Flow of Powder Compacts", Powder Metallurgy, Vol.43, pp.263-269 (2000). 69. Roger B. Clough, Stephen C. Webb and Ronald W. Armstrong, "Dynamic hardness measurements using a dropped ball: with Application to 1018 Steel", Materials Science and Engineering, A360 (2003) 396-407. 70. Armstrong, Ronald W.; Clough, Roger B.; Kish, Laszlo B.; Lucey, George K. "The dancer and the piper: resolving problems with government research contracting", Defense AT & L, November 1, 2004 <----------------------------------------------------------------------------------------- [Roger Clough], [rclo...@verizon.net] 12/8/2012 "Forever is a long time, especially near the end." -Woody Allen [Roger Clough], [rclo...@verizon.net] 12/12/2012 "Forever is a long time, especially near the end." -Woody Allen -- You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to everything-list@googlegroups.com. To unsubscribe from this group, send email to everything-list+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/everything-list?hl=en.