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In this paper, the classical laminated plate theory and the finite element method, the design and preparation of composite materials for power transmission drive shaft, instead of the traditional steel car to the drive shaft. First of all, to establish a composite resin formulations and curing system. Selected E-56 epoxy resin, methyl hexahydro phthalic anhydride as a curing agent, polyethylene glycol diglycidyl ether as a toughening agent, DMP-30 as an accelerator, the system of the wet winding process of the carbon fibers with the temperature epoxy curing systems. Study the of flexibilizer amount of viscosity epoxy resin system, and 30 ° C, toughener add from 0% to 30%, the viscosity of epoxy resin E-56 dropped from 4795mPa · s for 589 mPa. s. Using non-isothermal DSC method to study the curing reaction of epoxy resin systems dynamics, Kissinger equation of curing reaction apparent activation energy is 62.60 kJ / mol, and the the Ozawa equation of curing reaction activation energy is 68.36 kJ / mol, both calculated The results are similar to verify the accuracy of the Kissinger equation and Ozawa equation. Curing reaction order of 0.9106, the curing reaction is a complex reaction. System gel time of 106.77 ° C, the curing temperature is 134.25 ° C, the post-treatment temperature is 155.91 ° ??C, and 80 ℃, the reaction rate is only 0.003,120 ℃, the reaction rate reached 0.03, the final choice of 80 ° C / 2 h 120 ° C / 4h 80 ℃ / 1h as epoxy curing system. Design of casting molds, as well as six different formulations, the study of physical properties of epoxy resin casting. Finalized 85% of the curing agent, the the toughener amount of 15%, the accelerator dosage 1% formula as used for winding epoxy resin formulations the the casting this recipe bending strength of 94.67MPa, impact strength 2.34KJ/m2. Then, using classical laminated plate theory and the finite element method, on the drive shaft of the composite ply design, different ply angles, ply thickness and ply sequence for the performance of the drive shaft. Classical laminated plate theory shows that the 0 degree ply the axial modulus composite drive shaft can be increased, thereby enhancing its natural frequency; increase 45 degrees overlay, can improve the composite drive shaft torque; 90 degrees overlay enables composite drive shaft ply more dense and increase friction, can be able to to improve reverse the yield strength. Asymmetric overlay, the stacking sequence of the performance of the composite drive shaft; symmetric ply stacking sequence has no effect on composite drive shaft performance. The finite element simulation showed that the stacking sequence has no effect on the frequency, the impact of torsional yield strength. Buckling analysis of composite drive shaft at both ends of the Mises stress distribution smaller, extremely prone destroyed; near both ends of the site in the middle Mises stress, followed by the role of a large area; Mises stress of the middle of the smallest. Finally, the epoxy resin system, the T700 carbon fiber as raw material, design six different overlay using the filament winding process, preparation of the inner diameter of 30mm, wall thickness 2mm, length 710mm carbon fiber driveshaft, the design expertise chuck and assembly carried out Torque test. Torsion tests Shop 5, layer [90/15/-15/15/-15/-45/45/-45/45/90 of carbon fiber driveshaft torque reached a maximum of 551Nm. Torsion test, the ply angle proportional identical case, different stacking sequence affects the carbon fiber driveshaft torque. Carbon fiber driveshaft wring the layered rupture of the carbon fibers into bundles of carbon fibers, having a high safety.
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