本文選題：熱固性樹(shù)脂基復(fù)合材料 + 帽型加筋結(jié)構(gòu)��； 參考：《復(fù)合材料學(xué)報(bào)》2016年01期

【摘要】：硅橡膠芯模是實(shí)現(xiàn)熱固性樹(shù)脂基復(fù)合材料帽型加筋結(jié)構(gòu)共固化成型的關(guān)鍵工裝之一,而在預(yù)浸料固化加熱過(guò)程中硅橡膠芯模的熱膨脹需要通過(guò)預(yù)制適當(dāng)?shù)恼{(diào)型孔來(lái)消除,以保證帽型加筋結(jié)構(gòu)的成型質(zhì)量。首先,通過(guò)建立硅橡膠芯模預(yù)制調(diào)型孔熱力耦合有限元分析模型對(duì)不同結(jié)構(gòu)的硅橡膠芯模進(jìn)行了計(jì)算機(jī)仿真,從而得出了實(shí)現(xiàn)復(fù)合材料帽型加筋結(jié)構(gòu)形性協(xié)同制造的硅橡膠芯模預(yù)制調(diào)型孔最佳尺寸范圍。然后,綜合分析了硅橡膠芯模受熱膨脹的可能影響因素,進(jìn)而建立了考慮體積修正系數(shù)的預(yù)制調(diào)型孔計(jì)算模型。接著,利用有限元方法回歸了芯模預(yù)制調(diào)型孔體積修正系數(shù),并利用回歸出的修正系數(shù)對(duì)不同截面尺寸的帽型結(jié)構(gòu)進(jìn)行了仿真驗(yàn)證,從而確定了較為準(zhǔn)確的預(yù)制調(diào)型孔理論計(jì)算模型。最后,通過(guò)實(shí)驗(yàn)驗(yàn)證了該數(shù)學(xué)模型及有限元分析方法的正確性,為制造復(fù)合材料帽型加筋結(jié)構(gòu)提供了理論與實(shí)驗(yàn)依據(jù)。
[Abstract]:Silicone rubber core mould is one of the key tools to realize the cocuring forming of the cap reinforced structure of thermosetting resin matrix composites. However, the thermal expansion of the silicone rubber core mold needs to be eliminated by prefabrication and proper adjusting hole during the curing heating process of prepreg. In order to ensure the forming quality of cap reinforced structure. Firstly, the computer simulation of silicone rubber core die with different structure is carried out by establishing the thermo-mechanical coupling finite element analysis model of the prefabricated mold. Thus, the optimum size range of the prefabricated adjusting hole of the silicone rubber core die is obtained, which can realize the joint manufacture of the reinforced structure of the cap type of composite material. Then, the influence factors of thermal expansion of silicone rubber core die are analyzed, and the calculation model of prefabricated adjusting hole considering volume correction coefficient is established. Then, the volume correction coefficient of the core die is regressed by the finite element method, and the cap structure with different cross section size is simulated and verified by the regression correction coefficient. Thus, a more accurate theoretical calculation model of prefabricated adjustable holes is established. Finally, the correctness of the mathematical model and the finite element analysis method are verified by experiments, which provides the theoretical and experimental basis for the fabrication of composite cap reinforced structures.
【作者單位】： 中南大學(xué)機(jī)電工程學(xué)院;中南大學(xué)輕合金研究院;寧波大學(xué)機(jī)械工程與力學(xué)學(xué)院;
【基金】：“973”計(jì)劃(2014CB046502) 中國(guó)博士后基金(2014M562127) 湖南省博士后專(zhuān)項(xiàng)基金(2014RS4031) 國(guó)家重點(diǎn)實(shí)驗(yàn)室開(kāi)放基金(Kfkt2013-04)
【分類(lèi)號(hào)】：TB33

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本文編號(hào)：1944399