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  本文關(guān)鍵詞：復(fù)合材料整體化多墻盒段漸進(jìn)式失效分析和試驗(yàn)驗(yàn)證　出處：《復(fù)合材料學(xué)報(bào)》2016年10期 　論文類(lèi)型：期刊論文

  更多相關(guān)文章： 復(fù)合材料 整體化多墻盒段 漸進(jìn)損傷 后屈曲 破壞試驗(yàn) 承載能力

【摘要】：為準(zhǔn)確預(yù)測(cè)復(fù)合材料盒段的損傷起始和破壞過(guò)程,針對(duì)復(fù)合材料整體化多墻盒段研究了考慮材料失效的漸進(jìn)損傷有限元分析技術(shù)。首先基于ABAQUS軟件,利用標(biāo)準(zhǔn)試驗(yàn)獲得的材料力學(xué)性能建立了盒段漸進(jìn)損傷分析模型,分別采用三維Hashin失效準(zhǔn)則和平方應(yīng)力失效準(zhǔn)則作為復(fù)合材料層板和連接界面的失效判據(jù);然后,基于該模型完成了復(fù)合材料整體化多墻盒段后屈曲承載能力的求解,并利用破壞試驗(yàn)對(duì)分析模型進(jìn)行驗(yàn)證。結(jié)果表明:結(jié)構(gòu)承載能力和應(yīng)力的有限元分析結(jié)果與試驗(yàn)值吻合良好,預(yù)測(cè)的失效模式也與試驗(yàn)結(jié)果一致,屈曲載荷和承載能力誤差在5%以內(nèi)。所得結(jié)論表明考慮層板失效和界面脫粘的分析模型能有效模擬整體化多墻盒段的破壞過(guò)程。
[Abstract]:In order to accurately predict the damage initiation and failure process of composite box segment, the progressive damage finite element analysis (FEM) technique considering material failure was studied for the composite material integrated multi-wall box segment. Firstly, the finite element analysis (FEM) was based on ABAQUS software. Based on the mechanical properties of materials obtained by standard test, the progressive damage analysis model of box segment is established. The three dimensional Hashin failure criterion and the square stress failure criterion are used as the failure criteria of composite laminates and joints respectively. Then, based on the model, the post-buckling load-carrying capacity of multi-wall box segment of composite material is solved. The failure test is used to verify the model. The results show that the finite element analysis results of the load-carrying capacity and stress of the structure agree well with the test values, and the predicted failure modes are also consistent with the test results. The error of buckling load and load-carrying capacity is less than 5%. The results show that the failure analysis model considering laminate failure and interfacial debonding can effectively simulate the failure process of integrated multi-wall box.
【作者單位】： 西北工業(yè)大學(xué)航空學(xué)院;中國(guó)飛機(jī)強(qiáng)度研究所;
【基金】：中歐國(guó)際合作項(xiàng)目(2011DFA72840)
【分類(lèi)號(hào)】：V214.8
【正文快照】： 網(wǎng)絡(luò)出版地址:www.cnki.net/kcms/detail/11.1801.TB.20160523.1425.004.html引用格式:張國(guó)凡,孫俠生,吳存利,等.復(fù)合材料整體化多墻盒段漸進(jìn)式失效分析和試驗(yàn)驗(yàn)證[J].復(fù)合材料學(xué)報(bào),2016,33(10):2344-2354.ZHANG G F,SUN X S,WU C L,et al.Progressive failure analysis and t，

本文編號(hào)：1355845