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Article Dans Une Revue Materiale Plastice Année : 2022

Mechanical Properties of Ultra-high Molecular Weight Polyethylene (tensylon) from Tensile Tests

Luminita-Cristina Alil
  • Fonction : Auteur
M. Arrigoni
Cristian Barbu
  • Fonction : Auteur
Guilhem Bles
Lorena Deleanu
  • Fonction : Auteur
Pavel Mostovykh
  • Fonction : Auteur
Simona Sandu
  • Fonction : Auteur

Résumé

Results on mechanical properties of Tensylon composites at room temperature are presented. Single-ply and two-ply samples, obtained from the ply-precursor sheet (of two orthogonal layers) have been subjected to: load till failure in traction, at different strain rates (below 10-1 s-1) and cycles of successive loading and unloading and 5 min stress relaxation period. The characteristic times of relaxation are evaluated and the difference in values of Young modulus before and after the relaxation stage is established. A complex cyclic/relaxation test requires a visco-elasto-plastic model of Tensylon, and allows to quantify it. This model predicts the material behavior in other types of tests: for instance, it predicts strain rate independence of loading to failure in the considered strain rate range. Cyclic tests fulfilled at a fixed strain rate suggest that Tensylon is an elastoplastic material without noticeable viscosity. The proposed model, additively including nonlinear viscoelasticity and plastic flow with strengthening, shows a satisfactory agreement with experimental data. It also agrees that the material is strain-rate-insensitive in the range 10-3 s-1-10-1 s-1.

Dates et versions

hal-03687260 , version 1 (03-06-2022)

Identifiants

Citer

Luminita-Cristina Alil, M. Arrigoni, Cristian Barbu, Guilhem Bles, Lorena Deleanu, et al.. Mechanical Properties of Ultra-high Molecular Weight Polyethylene (tensylon) from Tensile Tests. Materiale Plastice, 2022, 59 (1), pp.51-69. ⟨10.37358/MP.22.1.5559⟩. ⟨hal-03687260⟩
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