繊物の二次元を例とした変形予測法

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  • Estimating method of textile fabric deformation - In the case of two-dimensional problem.
  • オリモノ ノ 2ジゲン オ レイ ト シタ ヘンケイ ヨソクホウ

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As we have explained in the previous paper, we have already proposed a theory and a method to solve the mechanical behaviour of the textile fabrics. The aim of this study is to compare the results from the method above with experimental ones.<br>Before this, it is necessary to clarify the measurement method of the mechanical properties of material fabrics. We first describe the relation between the theoretical elastic modulus and the experimental ones.<br>In the theory, we assume that the elastic modulus of fabric is an unigue constant, but the results of the measurements are histerisis curves in general. Which part of the curve is proper to use to obtain the elastic modulus, especially in the bending case? Two values are nominated and examined through the simulations.<br>Next, we introduce the formulation of the wall as the constraint condition. Evidently when a wall contacts to the cloth such as the heart loop, the shape of the loop changes. For this is analogous to the garment on the human body, the formulation of the wall is essential to the estimating problem.<br>To test the applicability of the estimating method, we selected three kinds of fabric samples and prepare two kinds of walls, horizontal and sloped ones, and recorded the actual shapes of the loops in contact with the walls.<br>We also assume that there is no friction between the fabric and the wall. The difference between the results of the simulation and the experiment occurs in the case of the sloped wall.

収録刊行物

  • 繊維学会誌

    繊維学会誌 44 (5), 229-237, 1988

    社団法人 繊維学会

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