Journal
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
Volume 100, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.euromechsol.2023.105004
Keywords
Semi-crystalline; POM; Eulerian; Compressible plasticity; Damage; Viscoelasticity
Categories
Ask authors/readers for more resources
A constitutive model for isotropic, semi-crystalline polymers, independent of measures of total deformation and plastic/inelastic deformations, is proposed. The model is capable of accounting for strain-rate dependence, work hardening, stress relaxation, volumetric inelastic deformations, and damage. The model was successfully applied to polyoxymethylene (POM) uniaxial tension tests and implemented in a 3D geometry simulation using Abaqus.
A constitutive model for isotropic, semi-crystalline polymers is proposed. The model is Eulerian in the sense that it is independent of measures of total deformation and plastic/inelastic deformations. It is able to account for such essential phenomena as strain-rate dependence, work hardening, stress relaxation, volumetric inelastic deformations, and damage. The model was applied to uniaxial tension tests performed on polyoxymethylene (POM), which is a semi-crystalline polymer widely used in the industry. Three types of tests were conducted: monotonic tests at different strain rates, stress relaxation tests, and loading-unloading tests. The model was able to reproduce the experimental results well. The proposed model was also implemented as a VUMAT in Abaqus, and the deformation of a 3D geometry was simulated.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available