4 格子のlimit analysis

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タイトル別名
  • (4) LIMIT ANALYSIS OF GRIDS
  • 格子のlimit analysis
  • コウシ ノ limit analysis

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This paper is concerned with the limit analysis of grids. Firstly, taking a simple unit grid, we give a general expression of equilibrium, in a sort of form of difference equations. Based upon the above equations, where we neglect for simplification the terms of Torques, we treat rectangular grid, circular and conical grids. The rectangular grids are supported in two ways; the one with four fixed sides and the other supported at four corner points. The circular and conical grids are supported with inner fixed edge circle and free outer circle. In cases of axially sunmetrical loading, where no torque exists, we could approch lower bounds to upper bounds with sufficient accuracy.

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