Presentation Details
A micro-mechanically motivated approach for modelling the oxidative ageing process of elastomers
Thursday, 12 Oct 2017; 11:50 - 12:10 in room 7.31
In Session:
MS18-1: Virtual Analysis and Design of New Materials (Show complete Mini Symposium)
Thursday, 12 Oct 2017; 10:30 - 12:30 in room 7.31
Show complete Session
1st and presenting Author
Darcy Beurle
Institute for Mechanics and Computational Mechanics
Leibniz Universität Hannover
Hannover, Germany
Institute for Mechanics and Computational Mechanics
Leibniz Universität Hannover
Hannover, Germany
2nd Author
Markus André
Mechanical Engineering and Bioprocess Engineering
University of Applied Sciences and Arts Hannover
Hannover, Germany
Mechanical Engineering and Bioprocess Engineering
University of Applied Sciences and Arts Hannover
Hannover, Germany
3rd Author
Udo Nackenhorst
Institute for Mechanics and Computational Mechanics
Leibniz Universität Hannover
Hannover, Germany
Institute for Mechanics and Computational Mechanics
Leibniz Universität Hannover
Hannover, Germany
Micro Abstract:
The response of elastomers is strongly influenced by chemical ageing, which changes the polymer network through chain scission and formation of new links. In this work, a micro-mechanical approach based on chain statistics is used to introduce ageing into the constitutive model through a unit-sphere homogenization technique. As a first step, chain scission is handled by a modification of the underlying probabilistic model, and challenges of modelling a secondary network formation are discussed.