Uncertainty Quantification for Mechanical Properties of Polyethylene Based on Fully Atomistic Model

verfasst von

Nam Vu-Bac, X. Zhuang, T. Rabczuk

Abstract

This study is to assess the effect of temperature and strain rate on the mechanical properties of amorphous polyethylene (PE) based on fully atomistic model. A stochastic constitutive model using data obtained from molecular dynamics (MD) simulations for the material is constructed. Subsequently, a global sensitivity analysis approach is then employed to predict the essential parameters of the mechanical model. The sensitivity indices show that the key parameter affecting Young's modulus and yield stress is the temperature followed by the strain rate.

Organisationseinheit(en)

PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme

Externe Organisation(en)

Ton Duc Thang University

Typ

Artikel

Journal

MATERIALS

Band

12

ISSN

1996-1944

Publikationsdatum

01.11.2019

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Werkstoffwissenschaften (insg.)

Elektronische Version(en)

https://doi.org/10.3390/ma12213613 (Zugang: Offen)