Predicting the long-term failure of polycarbonate: A constitutive approach

E.T.J. Klompen, T.A.P. Engels, R.P.M. Janssen, L.E. Govaert, H.E.H. Meijer

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Abstract

In this study, an in-house numerical model is employed to predict the time-to-failure of polycarbonate under long-term constant or cyclic loading. This elasto-viscoplastic model captures the intrinsic deformation behavior of the glassy polymer. The model parameters are determined from uni-axial compression testing. In the case of long-term loading, however, special attention should be given to the intrinsic deformation behavior, as this might change within the time-scale of the experiment. Therefore, an elaborate investigation is performed to implement so-called aging kinetics in this model. It is shown that the application of approach leads to accurate predictions of time-to-failure under both constant loading and cyclic loading conditions. Moreover, the current model is based on a single parameter set and is molecular weight independent.

Original languageEnglish
Title of host publication11th International Conference on Fracture 2005, ICF11
Pages5503-5507
Number of pages5
Volume7
Publication statusPublished - 1 Dec 2005
Event11th International Conference on Fracture 2005, ICF11 - Turin, Italy
Duration: 20 Mar 200525 Mar 2005

Conference

Conference11th International Conference on Fracture 2005, ICF11
CountryItaly
CityTurin
Period20/03/0525/03/05

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