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題 名 | Homogenization of Nonlinear Composites Using Transformation Field Analysis=非線性的複合材料使用轉換場分析的均質化行為 |
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作 者 | Prochazka,Petr; | 書刊名 | 中國工程學刊 |
卷 期 | 22:6 1999.11[民88.11] |
頁 次 | 頁721-727 |
分類號 | 440.15 |
關鍵詞 | 非線性複合材料行為; 均質化行為; 轉換場分析; 邊界元素法; Nonlinear material behavior of composites; Homogenization; Transformation field analysis; Boundary element method; |
語 文 | 英文(English) |
中文摘要 | 在90年代的早期,Dvorak (1991),及Dvorak和Prochazla (1996),提出轉換場分 析(TFA)。它包含表達特徵應變或特徵應力與應變和應力之間的線性關係。借助這些特徵參 數,材料中的力學和熱的現象能被模擬出來。在這篇論文中,TFA被應用於非線性的複合 材料的均質化。邊界元素法是非常有用的數值方法,已應用於解積分方程式。一個範例顯示 出本文方法的可行性。雖然此例題在微觀尺度的單位晶格下討論,但也可推廣到隨機分佈纖 維的整體單元問題。 |
英文摘要 | In the early nineties. Dvorak (1991) and Dvorak and Prochazka (1996) put forward Transformation Field Analysis (TFA) which consists of expressing a linear relationship between either eigenstrains or eigenstresses and on the other hand strains and stresses in a structure. By means of these eigenparameters mechanical and thermal phenomena in materials can be simulated. In this paper the TFA is applied to homogenization of nonlinear composites. A very useful numerical tool, the BEM, has been applied to the solution of integral equatioins. A sample example shows the ability of the procedure proposed. The problem is solved on a unit cell at microscopic level, but more complicated structures of fibers on. Say. Reference volume elements with stochastically distributed fibers may be studied. |
本系統中英文摘要資訊取自各篇刊載內容。