On a Technique to Obtain an Optimum Strength Shape by the Finite Element Method

概要

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In this paper, a technique to obtain an optimum strength shape is proposed by applying an automated design system. The main process of this technique is that at the first step a fundamental shape, which satisfies the design conditions, is made ; at the second step the superiority or inferiority of the shape is judged according to the stress distributions obtained by using the F.E.M. ; and more the shape is corrected at the final step. Particularly, at the final step the correction of shape is made by the method of changing the finite elements used by the F.E.M. into the optimum shapes. If these steps are repeated, the optimum shape will be obtained. Next, the above mentioned technique is applied to determine an optimum strength shape of a dam under water pressure.
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