复合材料成型模具设计及有限元分析

AbstractDesign of carbon composite reinforced parts in some sport equipment and theirmould development are made.Since composites are thermoset,the technology ofmould forming is adopted.A carbon composite blank is heat and soften in advance,then is put in mould cavity and the mould is clamped.The mould is heat and theblank is solidfied and formed.When the mould is cooled and unfolded,the wholeprocess of the carbon composite product is finished.Reversal design technique isused to design mould.The combined mould cores are chosen to make mouldunfolded easily.Some key parameters,such as the pressure in mould cavity andmould clamping force,are calculated.Desired effects in the material choice,precision and service life of moulds are reached.A carbon composite laminate ismade of many layers.The angles and order of layers affect carrying capacity ofstructures.Based on the classical theory of laminated plates and shells,using a finiteelement of thin shells in ANSYS software,the stuctrue is analysed with manyparameters under peak loads.The optimized ply-up scheme suitable to stucturalfeatures is determined.Mould forming of prodcuts is also simulated by finiteelement method.The carbon composite product in mould cavity is subjected touniform loads.The peak value of stress is reduced to prevent damage.Designreferences for design of composite products and their moulds are obtained throughnumerical calculation and analysis.There are 81 figures,7 tables and 55 references in the thesis.Keywords:Carbon Fibre-Reinforced Plastics;laminate;Mould forming;mould;FinteElement;Strength