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No. 35 (1988/03) >

Title :ハイブリッドストレスモデルによる弾塑性解析法
Title alternative :Elasto-Plastic Analysis Using Hybrid Stress Model
Authors :伊良波, 繁雄
Authors alternative :Iraha, Shigeo
Issue Date :Mar-1988
Abstract :In this paper, a elastic-plastic analysis of Two-Dimensional structures based on hybrid stress model is presented. When yielding occur in the element, The stress field satisfies the plastic condition in the element therfor the plastic condition equations is introduced into the principle of hybrid complementary energy using lagrange multipliers defined on the yielded checking point in the element. The elastic-plastic stiffness matrix can be derived throgh stationaly conditions of the principle of hybrid complementary energy. For numerical examles, the hybrid stress model is applied for the elasto-plastic analysis of the thick cylinder internal pressure, V-notch specimen under tensile load, the bearring capacity of foundation under footing and perforated plate under tensile load. The results of numerical examples are in good agreement with the ones of limit analysis and other methods.
Type Local :紀要論文
ISSN :0389-102X
Publisher :琉球大学工学部
URI :http://hdl.handle.net/20.500.12000/17653
Citation :琉球大学工学部紀要 no.35 p.35 -48
Appears in Collections:No. 35 (1988/03)

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