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研究生:趙振伯
研究生(外文):Jen-Bo Jau
論文名稱:以增量式內涵塑性理論分析材料受軸向循環負載之塑性行為
論文名稱(外文):no
指導教授:葉維磬
指導教授(外文):W.C. Yeh
學位類別:碩士
校院名稱:國立中央大學
系所名稱:機械工程研究所
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:72
中文關鍵詞:內涵材料函數
外文關鍵詞:material functionEndochronic
相關次數:
  • 被引用被引用:0
  • 點閱點閱:138
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摘 要
本文採用增量式內涵時間塑性理論為架構,並以一組有限指數遞減函數為核心函數,提出新的材料函數 以期對材料在受到循環負載下的塑性行為有更好的預測性,此循環塑性行為包括包辛格效應、循環硬化及飽和穩態等行為。
理論和實驗的比較結果顯示,藉由修正材料函數,內涵時間塑性理論可以很合理且完整的描述及預測材料受單軸循環負載下之受力行為。此外,本文所提出的材料函數,對於實驗所觀察到的記憶消除效應亦可做合理的描述。


目 錄
頁次
摘要Ⅰ
目錄Ⅱ
圖表說明Ⅳ
符號說明Ⅷ
第一章 緒論
1-1 前言1
1-2 文獻回顧2
1-3 研究動機與方法6
第二章 增量式內涵塑性理論
2-1 引言7
2-2 內涵組成方程式8
2-3 增量式內涵組成方程式10
2-4 材料函數13
2-4-1 包辛格效應(Bauschinger Effect)16
2-4-2 函數c16
2-4-3 記憶消除(Erasure of Memory)18
第三章 數值計算
3-1 計算流程20
3-2 應力值的計算22
第四章 結果與討論
4-1 實驗負載路徑26
4-2 結果與討論27
4-2-1 軸向等振幅循環28
4-2-2 軸向非對稱等振幅循環28
4-2-3 軸向漸增振幅循環29
4-2-4 軸向漸變均值循環30
4-2-5 軸向漸增振幅及漸變均值循環31
第五章 結論與建議
5-1 結論33
5-2 建議34
附錄一66
參考文獻68


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