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纖維排布方式對SiC/Ti材料殘余應(yīng)力影響的有限元分析
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國家自然科學(xué)基金（50871086）；凝固技術(shù)國家重點(diǎn)實(shí)驗(yàn)室自主研究課題（KP200906）


Finite Element Analysis for Effects of Fiber Arrays on the Residual Stress of SiC Fiber Reinforced Ti-Matrix Composite (SiC/Ti)
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    摘要:

    采用三維有限元法模擬SiC/Ti-6Al-4V復(fù)合材料界面的殘余應(yīng)力分布，分析纖維排列方式對纖維一側(cè)界面殘余應(yīng)力的影響。結(jié)果表明，纖維排列方式對纖維一側(cè)界面徑向、軸向和周向殘余應(yīng)力均有較大影響，其中纖維六方排列時(shí)纖維一側(cè)界面殘余應(yīng)力沿纖維周向分布均勻，且周向殘余應(yīng)力小，不易在界面形成徑向裂紋，是較為理想的纖維排列方式。

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    Interfacial residual stress distribution of SiC/Ti-6Al-4V composite was simulated by a three-dimensional finite element method. The effects of fiber arrays on interfacial residual stresses were discussed. Results show that the fiber array has great influences on radial, axial and circumferential residual stress. Among them hexagonal fiber array is an ideal arrangement pattern due to uniform distribution of interfacial residual stresses along the circumferential direction and low circumferential residual stress, which makes it difficult to generate radial crack.

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婁菊紅,楊延清,羅 賢,陳 彥,馮廣海,李茂華.纖維排布方式對SiC/Ti材料殘余應(yīng)力影響的有限元分析[J].稀有金屬材料與工程,2011,40(2):243~246.[Lou Juhong, Yang Yanqing, Luo Xian, Chen Yan, Feng Guanghai, Li Maohua. Finite Element Analysis for Effects of Fiber Arrays on the Residual Stress of SiC Fiber Reinforced Ti-Matrix Composite (SiC/Ti)[J]. Rare Metal Materials and Engineering,2011,40(2):243~246.]
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  • 收稿日期:2010-04-08
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