%0 Journal Article
%T Mechanical Properties of Ultra-high Molecular Weight Polyethylene (tensylon) from Tensile Tests
%+ Institut de Recherche Dupuy de Lôme (IRDL)
%A Alil, Luminita-Cristina
%A Arrigoni, M.
%A Barbu, Cristian
%A Bles, Guilhem
%A Deleanu, Lorena
%A Mostovykh, Pavel
%A Sandu, Simona
%< avec comité de lecture
%@ 0025-5289
%J Materiale Plastice
%I Revista de Chimie SRL
%V 59
%N 1
%P 51-69
%8 2022-04-05
%D 2022
%R 10.37358/MP.22.1.5559
%K criss-cross composites
%K quasi-static tension
%K stress relaxation
%K Tensylon®
%K UHMWPE
%K viscoelasticity
%K viscoelastoplasticity
%Z Engineering Sciences [physics]/Mechanics [physics.med-ph]Journal articles
%X 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.
%G English
%L hal-03687260
%U https://hal-ensta-bretagne.archives-ouvertes.fr/hal-03687260
%~ UNIV-BREST
%~ ENSTA-BRETAGNE
%~ CNRS
%~ UNIV-UBS
%~ UBS
%~ ENIB
%~ IRDL
%~ ENSTA-BRETAGNE-MECA
%~ ENSTA-BRETAGNE-PTR3-IRDL