Collapse Load Analysis of Bending Plates by a New Discrete Model

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  • 新しい離散化モデルによる板の曲げ崩壊解析
  • アタラシイ リサンカ モデル ニヨル イタ ノ マゲ ホウカイ カイセキ

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Abstract

A new discrete model for plate bending is proposed in this paper. This plate model consists of rigid plate with a rotational spring, and a number of displacement parameter at one node is only one (w), namely 1/3 of a well-known triangular plate bending element. Furthermore strain energy is lumped in the spring so that energy integral is not necessary. Consequently considerable reduction of computing time will be expected. By assuming that the rotational springs are ideal plastic and adopting the well-established incremental loading procedure, collapse load analysis of plate bending problems is proposed. A series of results of analysis have duly proved validity of the present method.

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