A reasonable winding tension system can leverage the advantages of high
modulus and high strength of fibers. However, the traditional tension system
is not suitable for the heated-mandrel winding process since the relevant
physical parameters will change with temperature, which will disrupt the
original force balance relationship between adjacent winding layers in single
winding process and indirectly affect the stress field by temperature-curing
degree field. In this article, the tension solution model is rederived, and the
tension system considering the influence of temperature-curing degree on
winding tension is established to solve the thermal-dependence of stress field
on temperature. As well, combined with the idea of interference fit in the
solving process, the overall radial strain and stress are obtained based on the
superposition principle in elastic mechanics. By adjusting the tension system,
the radial compressive stress applied to each winding layer is changed to
compensate the residual stress and maintain the force balance relationship between
the adjacent layers. The results show that the numerical simulation results
are in good agreement with the experimental results, suggesting that the
thermal-dependent tension system established in this article is suitable for
the heated-mandrel winding process and that the model is accurate and
reliable.
Keywords
heated-mandrel winding process, thermal-dependent
parameter, interference fit, winding tension system