Peer-Reviewed Journal Details
Mandatory Fields
Grogan, DM,Bradaigh, CMO,McGarry, JP,Leen, SB
Composites Part A-Applied Science And Manufacturing
Damage and permeability in tape-laid thermoplastic composite cryogenic tanks
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
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.
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