Finite element analysis forming process parameters influences on elastic properties of fiber reinforce prepreg

Based on the micro-structure of fiber reinforce prepreg composites, elastic deformation theory of fiber reinforce prepreg was derivation under the action of process tension and temperature parameters. Using finite element analysis software established the parameterization finite element model. By applying reasonable load and boundary condition, to study the changes of the elastic properties parameters of the fiber reinforce prepreg under the action of tension and temperature. On the basis of discuss the relationship between tension and fiber volume content, detailed analysis the influence of the tension, temperature and fiber volume content on elastic properties of fiber reinforce prepreg. The results show that: with the increase of tension in range of 0~50 N, elastic modulus and shear modulus are presented as approximate linear increase and then remained stable last decreased, and the shear modulus is trend slower. With the temperature increasing, longitudinal modulus of fiber reinforce prepreg showed gradually decreased and then tends to be steady, and the higher the fiber volume content, the change trend slower. The transverse modulus of show firstly increases and then decreases. The shear modulus decreases with the increase of temperature.