提高树脂基复合材料固化均匀性的加热曲线优化与其对变形的影响-研究

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1、华中科技大学硕士学位论文studiedbyDSC(DifferentialScanningCalorimetry)experimentsandmodel-fittingmethod.Thiscurekineticequationcanbeusedtosubsequentheatingcurveoptimizationofphenolformaldehyderesinprepreg.Finally,theoptimizedheatingcurveofaflatpartwiththicknessof2.5mmwasestablishedbycombin

2、ingtheheatingcurveoptimizingmethodandcurekineticequationofphenolformaldehyderesinprepreg.Calculateandcomparethenonuniformityofplatpartswiththicknessof1.5mm,2mmand2.5mmunderdirectheatingcurverespectively.Thenonuniformityofplatpartwiththicknessof2.5mmunderheatingcurvewhichisused

3、inactualproductionandoptimizedheatingcurvearealsoanalyzed,respectively.Correspondingflatpartcuringexperimentsareimplemented.Resultsofsimulationsshowthatthecuringuniformityofflatpartimprovesunderoptimizedheatingcurve.Accordingly,experimentresultsshowthatundertheoptimizedheating

4、curve,deformationofcuredflatpartreducescompareswithunderadirectheatingcurve,andthesameshapeofflatcompareswiththeflatcuredunderheatingcurvewhichisusedinactualproduction.Theoptimizedheatingcurvesaves26.5%ofthetimecomparedwiththeexistingprocess,meansthisheatingcurveoptimizingmeth

5、odcanimprovetheefficiencysignificantly,provesthefeasibilityoftheoptimizationmethod.Keywords:resinmatrixcomposite,finiteelementsimulation,curinguniformity,optimizingofheatingtemperaturecurve,deformationIII华中科技大学硕士学位论文目录摘要.........................................................

6、..............................................................IAbstract...............................................................................................................II1绪论..........................................................................................

7、........................11.1研究背景及意义...........................................................................................11.2研究现状.......................................................................................................31.3本文的主要研究内容和思路........................

8、..............................................92AS4/3501-6复合材