Uniaxial Tension of a Filament-wound Composite Tube at Low Temperature

Gyula Szabó; Károly Váradi

doi:10.14513/actatechjaur.v11.n2.456

Authors

Gyula Szabó Budapest University of Technology and Economics, Department of Machine and Product Design, Bertalan Lajos Street 3, 1111 Budapest, Hungary
Károly Váradi Budapest University of Technology and Economics, Department of Machine and Product Design, Bertalan Lajos Street 3, 1111 Budapest, Hungary

DOI:

https://doi.org/10.14513/actatechjaur.v11.n2.456

Keywords:

filament-wound composite tube, rubber-based tube, FE model, uniaxial tension, tensile test, material properties at -40 °C, sub-zero temperature

Abstract

The aim of this article is to model mechanical behavior of a filament-wound, rubber-based composite tube subjected to uniaxial tension at low temperature by test experiments and FE simulations. Uniaxial tensile tests at sub-zero temperature (-40 °C) have been carried out on standard test specimens and on hose pieces. furthermore, a uniaxial tensile test has been performed on a hose piece at room temperature as a reference experiment. Reinforcement layers of the composite tube are modeled as transversely isotropic, whereas elastomer liners are described by 2 parameter Mooney-Rivlin hyperelastic material model. Temperature-dependence of elastic constants of composite layers is attributed to the temperature-dependence of rubber, so uniaxial tensile tests on standard test specimens needed to be carried out for determining material properties of rubber at sub-zero temperature (-40°C).

Force-displacement results of FE models and experiments of standard test specimen and hose piece show good agreement. Likewise, force-displacement curves of reference experiment (carried out at room temperature) and its related FE simulation are in good agreement with each other. Slope of force-displacement curves of hose piece at -40 °C is nearly 3.4 times the slope of force-displacement curves of hose piece at room temperature.