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Cesar Augusto Sciammarella (born August 22, 1924) has made significant contributions to the field of experimental mechanics.〔Optical Methods for Experimental Solid Mechanics. (in Honor of Professor Cesar A. Sciammarella )〕 In the last decade he has extended his pioneering developments in moiré,〔Sciammarella, Cesar (1982). (The moiré method—A review ), Experimental Mechanics, Volume 22, Issue 11, p. 418-433.〕 holography, and speckle interferometry〔Sciammarella, Cesar (2002). Optics and Lasers in Engineering 40, (Heisenberg principle applied to the analysis of speckle interferometry fringes )〕 methodologies down to the nanometric level.〔Sciammarella, Cesar (2007). Experimental Analysis of Nano and Engineering Materials and Structures, Observation of Fundamental Variables of Optical Techniques in the Nanometric Range, p. 363-364.〕 These efforts have resulted in the field of optics to go beyond the classical Rayleigh limit reaching the nanometer range and in the electron microscopy to resolutions of the order of atomic distances. His fundamental research is widely used for 3D reconstruction, and stress and strain analysis. In his Doctoral Thesis on the Moiré method he extended the Continuum Mechanics model originally developed by Dantu to large deformations. He developed fundamental equations on the properties of moiré fringes, signs conventions. Furthermore he applied the moiré method to the solution of a plasticity problem, this was the first complete analysis of a non elastic problem with the moiré method. Dr. Sciammarella generalized the concept of fringe order in methods that measure displacements using Fourier analysis in the process of formation of the fringe images. He proved formally that the orders could be represented by real numbers instead of integers as it was usual at the time of his publication.〔Basic Optical Law in the Interpretation of the Moiré Patterns Applied to the Analysis of Strains. Experimental Mechanics, 1965.〕 In 1966, he presented a full model of the moiré fringes as phase modulated signals and provided a method to obtain displacements and strains for moiré and photo-elastic fringes. He introduced for the first time in the literature the Fourier method as a tool for fringe pattern analysis. His model stands today as a standard model used in the fringe analysis methodology.〔Substantial Improvements in the Processing of Moiré Data by Optical and Digital Filtering”, Proceedings of the Third International Congress of Experimental Stress Analysis, West Berlin, March 1966, VDI Berichte, N 102, 1966.〕 ==Education== * Diploma in Civil Engineering University of Buenos Aires, July 1950 * Ph.D., Illinois Institute of Technology, June 1960 Cesar Sciammarella received his diploma in Civil Engineering from the University of Buenos Aires in July 1950. After graduation he worked as a professional engineer in different industries and in different capacities including the Director of the Materials Testing Laboratories in the Metallurgy and Materials Division of the Atomic Energy Commission of Argentina. Later he was invited by Dr. A.J. Durelli to come to the USA to get a PhD degree under Dr, Durelli’s direction. He received his Ph.D., from the Illinois Institute of Technology in June 1960. Upon graduation he returned to the Argentine Atomic Energy Commission. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cesar Sciammarella」の詳細全文を読む スポンサード リンク
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