Modeling of a two-stage draw process

In our earlier work (S.E. Bechtel et al., J Appl Mech 2000;67(1):197-206) w e created a model for slip of linearly elastic belts on pulleys, and adapte d our model to isothermal draw of fibers on rollers (submitted for publicat ion). Here, we. (i) incorporate temperature dependence, (ii) extend the con stitutive characterization to piecewise linearly elastic-plastic fibers to capture the softening behavior of as-spun fibers, and (iii) assemble govern ing equations for fibers on rollers and in freespans, together with matchin g conditions, to produce a comprehensive model for a two-stage, non-isother mal industrial draw process. The model is then employed to simulate three r epresentative drawlines. (C) 2000 Elsevier Science Ltd. All rights reserved .