Abstract
This work presents a combined experimental and numerical approach to the design and analysis of tape-laid thermoplastic composite cryogenic tanks. A detailed material and defect characterisation of automated tape-laid CF PEEK is undertaken using optical micrography and 3D X-ray CT (computed tomography) as well as cryogenic testing to investigate damage. formation. Resulting material data is used as input for a novel XFEM (extended finite element method)-cohesive zone methodology which is used to predict intra- and inter-ply damage in an internally pressurised cryogenic tank. An optimised tank lay-up is presented and analysed using the numerical method to ensure resistance to microcrack formation and fuel leakage through the tank walls under operating loads. (C) 2015 Elsevier Ltd. All rights reserved.
| Original language | English (Ireland) |
|---|---|
| Pages (from-to) | 390-402 |
| Number of pages | 13 |
| Journal | Composites Part A-Applied Science And Manufacturing |
| Volume | 78 |
| DOIs | |
| Publication status | Published - 1 Nov 2015 |
Keywords
- B. Defects
- C. Finite element analysis (FEA)
- D. Non-destructive testing
- E. Lay-up (manual/automated)
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Grogan, DM,Bradaigh, CMO,McGarry, JP,Leen, SB