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題 名 | 彈塑性模型分析 |
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作 者 | 劉慶雄; | 書刊名 | 中正嶺學報 |
卷 期 | 21:2 1993.01[民82.01] |
頁 次 | 頁1-8 |
分類號 | 440.135 |
關鍵詞 | 彈塑性模型; 彈塑性分析; 負載過程; 本構方程式; 等向性硬化; 鮑氏效應; Elastic-plastic analysis; Elastic-plastic models; Loading history; Constitutive equation; Isotropic hardening; Bauschinger effect; |
語 文 | 中文(Chinese) |
中文摘要 | 彈塑性分析(Elastic-plastic Analysis)為常見之工程問題,而其關鍵則在於 彈塑性模型(Elastic-plastic Models)之選用,模型不同,結果亦異。對同一負載過程 (Loading History)而言,材料自純彈性,初始降伏、持續塑化、殘餘應力至逆降伏, 各種彈塑性模型於上述負荷過程中各階段所呈現之特性均不甚相同,而其間之差 異常為人所忽視。本文以三種不同之彈塑性模型,相同之負荷過程。對同一問題 一實心固軸扭轉做彈塑性分析。以探討各模型間之差異,並對結果進行比較及討 論。此外,本文亦以一例設負載為相關時間函數(如疲勞負載)作彈塑性動態分 析,文獻中之類此研析猶尚未見。 |
英文摘要 | The elastic-plastic analyses are popular engineering problems and the essence of whichis the usage of the elastic-plastic models. Different models lead to diverse results. For thesame loading history, materials depending on dissimilar models present different charactersat every stage during the processes-pure elastic, initial yielding, plastic loading, residualstresses and reverse yielding. The differences among those characters are usually ignored byus. In this paper, the authors investigate the differences among three elastic-plastic modelsbased on the elastic-plastic analysis of the torsion of a solid circular shaft for the sameloading history, the results are compared and discussed. Besides, one example of elasticplastic kinetic analysis is also given by assuming that loading function is time-dependent(fatigue-like loading) in the present paper, and this could be hardly found in references. |
本系統中英文摘要資訊取自各篇刊載內容。