Phenomenological modelling of damage in polymer blends

P.H.M. Timmermans, W.A.M. Brekelmans, J.H.P. Vree, de

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Abstract

To describe the constitutive behaviour of a certain class of polymer blends an elastoperfectly-viscoplastic and creep damageable material characterization is proposed. For a composite of 80 % Polystyrene and 20 % Ethylene Propylene Diene Monomer rubber (PSIEPDM) the specific parameters are determined from tensile tests in a particular range of strain velocities. To investigate the applicability of the model, the results of a finite element analysis for a laterally loaded thin plate (plane stress) with a circular hole are compared to measurements. Numerically calculated values are in reasonable agreement with reality; discrepancies can be ascribed to noise in experimental data. The finite element approach is evaluated with respect to the occurrence of mesh-dependence. Mesh-refinement shows convergence of solutions, attributable to the stabilizing influence of the viscous contribution in the constitutive equations.
Original languageEnglish
Title of host publicationTopics in applied mechanics : integration of theory and applications in applied mechanics
Place of PublicationDordrecht
PublisherKluwer Academic Publishers
Pages147-154
ISBN (Print)0-7923-2442-0
Publication statusPublished - 1993
Eventconference; 2nd National mechanics conference, November 1992, Kerkrade, The Netherlands -
Duration: 1 Jan 1993 → …

Conference

Conferenceconference; 2nd National mechanics conference, November 1992, Kerkrade, The Netherlands
Period1/01/93 → …
Other2nd National mechanics conference, November 1992, Kerkrade, The Netherlands

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    Timmermans, P. H. M., Brekelmans, W. A. M., & Vree, de, J. H. P. (1993). Phenomenological modelling of damage in polymer blends. In Topics in applied mechanics : integration of theory and applications in applied mechanics (pp. 147-154). Kluwer Academic Publishers.