In this contribution, the phenomenological material modelling of a polyurethane based adhesive including the curing process is considered. First, the underlying chemical process is regarded. To this end, differential scanning calorimetry experiments were carried out, models for the reaction heat and a so called degree of cure were formulated, and the corresponding model parameters were identified. Moreover, uniaxial tension tests with cyclic loading scenarios on the fully cured material were conducted and revealed typical behaviour of elastomers, like hysteresis, Mullins effect and permanent set. Based on the experimental results, a constitutive model has been formulated to capture the mechanical behaviour of the material in the fully cured state. Finally, an approach to capture changes of the mechanical behaviour during the curing process has been realized. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Proceedings in Applied Mathematics & Mechanics – Wiley
Published: Jan 1, 2017
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