Peer-Reviewed Journal Details
Mandatory Fields
Grogan, DM,Bradaigh, CMO,McGarry, JP,Leen, SB
2015
November
Composites Part A-Applied Science And Manufacturing
Damage and permeability in tape-laid thermoplastic composite cryogenic tanks
Published
WOS: 5 ()
Optional Fields
Defects Finite element analysis (FEA) Non-destructive testing Lay-up (manual/automated) ELASTIC PROPERTIES RESIDUAL-STRESSES 1ST-PLY FAILURE MODEL XFEM
78
390
402
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.
10.1016/j.compositesa.2015.08.037
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