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題名 | 不同比例應變下雙軸向週次負載對金屬材料硬化之研究 |
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作者 | 邱永川; | 書刊名 | 嘉義農專學報 |
卷期 | 34 1993.09[民82.09] |
頁次 | 頁53-69 |
分類號 | 440.35 |
關鍵詞 | 不同比例; 金屬材料; 負載; 硬化; 週次; 雙軸向; Biaxial strain; Cyclic harden; Mettallic; |
語文 | 中文(Chinese) |
英文摘要 | The stress response to various axial-torsional strain ratio with constant equivalentstrain was discussed. Theoretical study was carried out by using the modified endochronic theory inwhich plasticity strain was difined by intrinsic time. Numerical mathod was used to obtain mettallic respone with endochroic theory.The followwing results were obtained in this study 1.Under constant equivalent strain, Mettallic hardening phenomena inaxial-direction would be signficant as axial strain range decreased. 2.Summation of max-axial-peak stress square and 1.5 times of max-shear-peakstress square approcach to a constant value. In addition as the equivalent strain rangewas doubled after mettallic reached steady state, the summation would beapproximatly 4 times of previoue value. |
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