Abstract
Strain rate is one of the external parameters to affect the behaviour and response of polymer composites due to their viscoelastic properties. Therefore, understanding the strain rate effect on the materials' properties is crucial. The current work demonstrates the strain-rate sensitivity of self-reinforced polypropylene composites (SRPP) and their interply hybrids with glass fibre in bending loading. Hybridisation of SRPP with the glass reinforcement changes the strain-rate dependence behaviour. It was concluded that increasing strain-rate resulted in increasing both the strength and the modulus of the structures but the modulus dependence on strain-rate was less pronounced. For self-reinforced hybrid composites, a yield point was observed in the stress-strain flexural curve where the low strain failure glass laminate fails. The failure strain of GRPP, as well as maximum flexural strength, showed an increase by increasing the strain-rate.
| Original language | English |
|---|---|
| Pages (from-to) | 969-973 |
| Number of pages | 5 |
| Journal | Procedia Manufacturing |
| Volume | 47 |
| DOIs | |
| Publication status | Published - 2020 |
| Externally published | Yes |
| Event | ESAFORM Conference on Material Forming - Online Duration: 4 May 2020 → 8 May 2020 Conference number: 23rd |
Bibliographical note
Publisher Copyright:© 2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the 23rd International Conference on Material Forming.
Keywords
- Hybrid composites
- Self-reinforced composites
- Strain-rate effect