Relationship between measurable stress range and the ambient temperature of the cyclic stress measurement method using the grain growth of electrodeposited nickel foil was examined in this report. Since recrystallization temperature measured by the differential scanning calorimetry was 270 ℃, it can be said that the applicable upper limit is 250 ℃. However, it is necessary to pay attention for application to a machine element that subjected to high temperature for a long time, such as 200 ℃ × 120 h, since recrystallization is accelerated by keeping high temperature. Since a mechanical energy required for grain growth is increased with decreasing ambient temperature, the nickel foil was applied for the low temperature environment (373K) than the traditional report (473K). Maximum shearing stress that grains grown in 373K was about 1.5 times larger than that in 473K. The calibration equation between the grown grain density, maximum shearing stress, number of cycles and ambient temperature was obtained based on the experimental data. From this equation, the range of measurable shearing stress at various ambient temperatures was calculated and compared with the copper foil. Nickel foil was possible to measure the high shearing stress at low temperatures as compared to the copper foil.

　　　A performance of the feature-point matching using a concave target marker is investigated for three dimensional (3D) surface shape data given by a grating projection method. Multiple corresponding points are previously created from a surface shape measurement of the concave target markers, and a coordinate transformation matrix that serves as an interface between two sets of 3D shape measurement data is obtained from the feature-point matching with singular decomposition method. Then, effects of the number of the target marker on matching accuracy are discussed for the surface shape measurement data of the spherical mirror model. The results showed that the feature-point matching using the concave target marker connects two sets of the 3D surface shape measurement data at 40 μmRMS accuracy regardless of the number of the corresponding points. This matching accuracy is roughly the same as that achieved by the surface shape measurement using the grating projection method.

　　　Particle-sizing is requisite in research and development on dispersive two-phase flows. The commercial measuring devices are generally expensive, and cheaper devices would be helpful to the academic researches. From this point of view, the author developed the simple drop-sizing system which was based on the laser diffraction method and utilized an image-sensor to obtain angular distribution of the scattered light-intensity from particles. The system had been opened for academic researchers. During the trial, it was pointed out that setup of the system was not so easy because of the difficulty in putting an awning upon the delicate image-sensor. The system is improved by adding a lens pair to the basic optical-setup to generate intermediate focal-plane and placing the awning on the plane. Optimized diameter of the awning was smaller than that for previous system. As the results, the faults of previous system were canceled and also the range of diameter measurement was extended. The improved drop-sizing system is outlined and the results of several test measurements are presented. Based on the results, utility of the system was discussed.

　　　Elasto-plastic material properties are inversely identified from measured displacement fields using the virtual fields method. In order to identify the material properties from a few number of the displacement fields, total strain theory is used as a constitutive equation. The relations among the material properties, measured displacement fields, measured tractions, and virtual displacements are obtained from the principle of virtual work, and an over-determined set of equations is obtained by introducing virtual displacement fields. Then, they are solved by a least-square method to obtain material properties. The displacement fields of the specimen surface are obtained through the measurement using global digital image correlation. Then, the material property identification is implemented using a finite element model. The effectiveness of the proposed method is demonstrated by identifying the material properties of a pure aluminum specimen. Results show that the stress-strain relation after yielding can be evaluated from measured displacement fields by the proposed method.

　　　The technological development which efficiently checks the huge infrastructure structure is urgent need. From several years ago, we have studied using a laser Doppler velocimeter capable of remote non-contact measurement in vibration measurement. However, a seal for retro-reflection is employed as a laser illumination target by LDV measurement, but installation is sometimes difficult. Furthermore, it is difficult to multi-directional vibration measurement at a single target for normal measurement. Therefore, in order to solve the problems described above in the present study, we examined the new vibration measurement using heterologous laser irradiation targets.

　　　Japanese sword is Japanese historical famous weapon since ancient times, and has perfectly characteristics as the sharply, strongly influenced by the deformation and broken. Furthermore, the Japanese sword has also an affective characteristics as the traditional crafts, which recognized by the warlords. While the affective shape and historical consideration of Japanese sword is one of the most important variables for evaluating the new generation sword by the modern swordsmith, the Japanese sword have been generally archived by the two-dimensional scanning method. This study aims to try the affective shapely evaluation by three-dimensional archiving of Japanese sword. For the fundamental examination, we designed and manufactured the three-dimensional archiving device by using the stereo digital image correlation method. This paper presents the overview of the manufactured device and the basic measurement results. The goal of this study is to clarify the affective design from the viewpoints of both the shape and the sensual beauty.

　　　This study discusses tensile strength evaluation with small diameter specimen for electronic materials at high temperatures. A small size specimen which has 5mm in diameter and a new type strain measuring method which uses a non-contact band laser to obtain accurate stress-strain relationship curve of solders at high temperatures are discussed in this study. Materials tested in this study were Sn-3.5Ag and Sn-3.0Ag-0.5Cu lead-free solders. Static tensile tests were conducted at 313K, 353K and 393K with rapid strain rate to except creep damage influence on stress-strain relationship at high temperatures. Tensile strength and proof stress of the small size specimen were almost same as that of present standard size specimen. These results indicated that newly developed tensile specimen and strain measuring method are useful for investigating the high temperature tensile mechanical properties of solders.