Development of a high-fidelity framework to describe the process-dependent viscoelasticity of a fast-curing epoxy matrix resin including testing, modelling, calibration and validation
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
Fast-curing epoxy resins enable substantial reduction of cycle times during production of thermoset polymer matrix composites. Due to the snap-cure behaviour, both characterisation and processing of these resins are associated with high complexity which motivates the development of a high-fidelity framework for the prediction of the process-dependent behaviour ranging from experiment to model validation. In order to determine influence of time, temperature, and degree of cure, a multitude of rheometer and dynamic mechanical analysis experiments are conducted and evaluated. Building on the experimental results, a material model based on a generalised Maxwell model is developed. It is calibrated on the results obtained in the tests and shown to describe the material’s behaviour with high accuracy under all investigated conditions. The model’s predictive capabilities are further tested by applying it to a dynamic mechanical analysis, exposing the model to previously unknown loading and temperature conditions. It is demonstrated that the model is capable of predicting such changing boundary conditions with high accuracy.
Details
Original language | English |
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Article number | 3647 |
Number of pages | 21 |
Journal | Polymers |
Volume | 14 |
Issue number | 17 |
Publication status | Published - 2 Sept 2022 |
Peer-reviewed | Yes |
External IDs
Scopus | 85137811726 |
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Mendeley | 942741ab-cb95-3e80-97db-559e1e1029d9 |
WOS | 000851709300001 |
PubMed | 36080722 |
ORCID | /0000-0002-0169-8602/work/142242248 |
ORCID | /0000-0003-1370-064X/work/142243778 |
ORCID | /0000-0002-0820-8936/work/142245870 |
ORCID | /0000-0003-3624-3242/work/142255844 |
Keywords
Keywords
- material model, viscoelasticity, cure, testing