WU XIAOPING

Wu Xiaoping,professor of Experimental Mechanics,was born in 1938.After her graduation from Peking University in 1960,she became a teacher and professor (1985present) in the University of Science and Technology of China (USTC).From 1984 to 1986,she visited SUNY at Stony Brook as visiting scholar.During the period of 1998~2003,Professor Wu was the vicepresident of the Chinese Society of Theoretical and Applied Mechanics.From 1998 to 2004,Professor Wu served as dean of Engineering School of USCT.In 1997 she was elected as academician of Chinese Academy of Sciences.
Professor Wu has devoted her research works to the photomechanics for many years.She and her research group have published more than 100 papers on experimental theory and technology of photomechanics,mechanical behavior of materials by synchrotron radiation and MEMS application.
In the early years,she put emphasis on the movement law of laser speckles and developed the accurate threedimensional formula of space speckle movement based on Fresnel diffraction theory.This formula became the basic of laser speckle interferometry.A variety of experimental methods were developed by her research group,including measurement of random vibration and impact by laser speckle,white light speckle interferometry,novel design for DSPI,residual stress measurement and related technique for measurement of meso scale displacement field.
Based on the National Laboratory of Synchrotron Radiation,in USTC,an experimental platform for characterization of mechanical properties of various materials has developed,which is a powerful experimental tool to study inner damage evolution of materials in situ.It had been used to measure the relationship between strain and critical electrical current density of supperconduction band in 77K,the structure evolution of ceramic alloy during sintering in 800℃,the interface damage between fiber and matrix,and the mechanical behavior of porous materials by CT,etc.
Another project conducted by her research group is uncooled infrared (IR) imaging system,which is a new concept IR camera.The focal plan array (FPA) is formed by bimaterial micro cantilever array without any electrical connections.Each micro cantilever receives the infrared radiation and deflects due to the temperature rise on the cantilever.The deflection is then measured by photomechanical method.The FPA is substratefree and the support legs are multifold.The optical system for wholefield measurement is optimum by numerical simulation and experiment to achieve the best sensitivity.The IR images of a moving object in day and night or a person with different thickness dress has recorded successfully.