In this paper, the author has developed a new method for solving the two-dimensional stress problems using a digital computer. As examples, he calculated the stress distribution of a rectangular plate subjected to symmetrical loading and the stress concentration factors of a semi-infinite plate having a circular notch or a V-notch under tension. The stress distributions of an infinite plate subjected to a point load are used as a fundamental solution in this method. To satisfy the boundary conditions, the body force distributed on the boundary curve imagined in an infinite plate is used.
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Hironobu NISITANI (1968) studied this question.