Strength correlationships of simply-supported plates under combined in-plane bending and compression duo to variation in stress-strain relationships

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  • 材料の応力ひずみ関係の変化に伴う面内曲げ圧縮負荷を受ける周辺単純支持板の強度相関
  • ザイリョウ ノ オウリョクヒズミ カンケイ ノ ヘンカ ニ トモナウ メン ウチマゲ アッシュク フカ オ ウケル シュウヘン タンジュン シジバン ノ キョウド ソウカン

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Abstract

<p>Generally, the structural steel satisfies the material strength specified in the standards. However, there are variations in the strength and stress-strain relationship. The purpose of this paper is to clarify the influence of the stress-strain relationship of the material on the strength behavior of simply supported plate under in-plane bending and compression by numerical analysis. The numerical analysis used consideration of the following four kinds of changes of the stress-strain relationship; (a)material strength, (b)Young's modulus, (c)the gradient of strain hardening, (d)the difference of gradient between elastic and plastic areas. Finally, this paper proposed the ultimate strength evaluation method of the simply supported plate under in-plane bending and compression.</p>

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