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 language | English |
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| Title of host publication | Topics in applied mechanics : integration of theory and applications in applied mechanics |
| Place of Publication | Dordrecht |
| Publisher | Kluwer Academic Publishers |
| Pages | 147-154 |
| ISBN (Print) | 0-7923-2442-0 |
| Publication status | Published - 1993 |
| Event | conference; 2nd National mechanics conference, November 1992, Kerkrade, The Netherlands - Duration: 1 Jan 1993 → … |
Conference
| Conference | conference; 2nd National mechanics conference, November 1992, Kerkrade, The Netherlands |
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| Period | 1/01/93 → … |
| Other | 2nd National mechanics conference, November 1992, Kerkrade, The Netherlands |