著者

高橋 俊典 青木 勇

出版者

一般社団法人日本機械学会

雑誌

日本機械学会論文集. C編 (ISSN:03875024)

巻号頁・発行日

vol.62, no.600, pp.3196-3201, 1996-08-25

参考文献数

5

被引用文献数

2

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This paper proposes a new system for analyzing the shearing process using the visioplasticity method. This visioplasticity method is well known as a method for analyzing the metal deformation processing. Drawbacks to the grid method such as large deformation cannot be treated, time-consuming, Processing procedure is complex when image processing by computer is performed, have been overcome with this newly developed method. This newly developed method consists of the following steps. First, images of materials at an arbitrary stage and the following stage are input into the computer. Next, the displacement between the two stages is obtained by a correlation methed based upon the inverse Fourier transform of the phase difference between two images. By repeating this process, the whole forming process can be analyzed accurately in a short time under a wide range of deformation. In order to verify this proposal, practical shearing tests and the analysis of these tests using this system were carried out. As a result, the distribution of displacement and strains until a very large plastic deformation of the material could successfully be obtained.