本文關(guān)鍵詞： 熱塑性 纖維增強(qiáng)型復(fù)合材料 自動(dòng)鋪放 缺陷 多尺度分析 工藝設(shè)計(jì)　出處：《材料工程》2017年07期 　論文類型：期刊論文

【摘要】：纖維增強(qiáng)型復(fù)合材料(FRP)自動(dòng)鋪放成型缺陷形成過(guò)程涉及多個(gè)時(shí)空尺度,僅依靠宏觀失效理論及實(shí)驗(yàn)分析等方法無(wú)法實(shí)現(xiàn)對(duì)FRP鋪放成型缺陷機(jī)理的研究。為了解決以上問(wèn)題,本文針對(duì)熱塑性FRP,分析了其鋪放制造過(guò)程中常見(jiàn)的缺陷類型及其形成的基本原因,并結(jié)合氣泡成核、熱力耦合、界面增強(qiáng)理論及原位固結(jié)技術(shù)的國(guó)內(nèi)外研究成果,指出現(xiàn)階段FRP鋪放缺陷機(jī)理研究方法的不足,根據(jù)現(xiàn)有的多尺度分析法及材料設(shè)計(jì)的嵌套式關(guān)系,提出反串行嵌套式多尺度分析方法,并討論了基體的流動(dòng)性、結(jié)晶度、黏彈性及吸濕性等微觀力學(xué)參數(shù)的分析和計(jì)算方法。最后,采用灰色關(guān)聯(lián)及多目標(biāo)優(yōu)化法,提出FRP鋪放成型工藝的多尺度協(xié)同設(shè)計(jì)方法。未來(lái)研究重點(diǎn)是在鋪放樣機(jī)應(yīng)用化的基礎(chǔ)上,分析工藝參數(shù)、成型缺陷與力學(xué)性能的關(guān)聯(lián)特性,揭示缺陷形成機(jī)理并優(yōu)化工藝參數(shù)。
[Abstract]:The forming process of automatic placement forming defects of fiber reinforced composites (FRP) involves many space-time scales. It is impossible to study the defect mechanism of FRP placement molding only by means of macroscopic failure theory and experimental analysis, in order to solve the above problems. Aiming at thermoplastic FRPs, this paper analyzes the common types of defects and the basic causes of their formation in the process of laying and manufacturing, and combines the research results of bubble nucleation, thermal coupling, interface enhancement theory and in situ consolidation technology at home and abroad. This paper points out the deficiency of the research method of FRP placement defect mechanism at present. According to the existing multi-scale analysis method and the nesting relation of material design, the multi-scale analysis method of row nesting is put forward, and the fluidity and crystallinity of matrix are discussed. The analysis and calculation method of micromechanical parameters such as viscoelasticity and hygroscopicity. Finally, grey correlation and multi-objective optimization method are used. This paper presents a multi-scale collaborative design method for FRP placement molding process. The emphasis of future research is to analyze the process parameters, the correlation characteristics of forming defects and mechanical properties on the basis of the application of laying prototyping. The mechanism of defect formation was revealed and the process parameters were optimized.
【作者單位】： 哈爾濱工業(yè)大學(xué)機(jī)電工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(51005060) 國(guó)家數(shù)控專項(xiàng)課題(2014ZX04001091)
【分類號(hào)】：TB332

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 韓振宇;王振宇;邊東巖;曹忠亮;富宏亞;;自動(dòng)鋪絲構(gòu)件缺陷形成機(jī)理的研究進(jìn)展[J];纖維復(fù)合材料;2014年04期

2 張建寶;趙文宇;王俊鋒;董波;蔣文革;;復(fù)合材料自動(dòng)鋪放工藝技術(shù)研究現(xiàn)狀[J];航空制造技術(shù);2014年16期

3 李星;關(guān)志東;劉璐;黎增山;;復(fù)合材料跨尺度失效準(zhǔn)則及其損傷演化[J];復(fù)合材料學(xué)報(bào);2013年02期

4 富宏亞;李sセ，

本文編號(hào)：1550193