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Romano, Giuseppe
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Publications (6/6 displayed)
- 2023Micromechanics of intra-laminar hybrid lamina with hollow fibres:
- 2023Micromechanics of intra-laminar hybrid lamina with hollow fibres::a RVE model
- 2022Micromechanics of yarn-level hybrid composite lamina
- 2022Elastic Properties Prediction in Yarn-level Hybrid Composite Lamina
- 2022Thermally induced residual micro-stresses in hybrid composite laminates with tow-level fibre hybridization
- 2022Thermally induced residual micro-stresses in hybrid composite laminates with tow-level fibre hybridization
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document
Thermally induced residual micro-stresses in hybrid composite laminates with tow-level fibre hybridization
Abstract
Conventional thermosetting composites laminates have high specific in-plane properties but low<br/>damage tolerance. An approach to enhance damage tolerance in composite laminates is to use towlevel<br/>fibre hybridization with thermoplastic fibres. This paper aims to investigate post-cure thermallyinduced<br/>residual micro-stress fields within the matrix and at the fibre-matrix interface in tow-level fibre<br/>hybrid laminates. Three-phase 3D RUCs and RVEs are developed to study the effect of fibre volume<br/>fractions, fibre types, fibre distribution on thermally induced residual micro-stress fields. Matrix von<br/>Mises stress and interfacial normal and shear stresses are analysed to study matrix and fibre-matrix<br/>156<br/>interface debonding initiation regions. It is shown that the addition of a second fibre type can influence<br/>drastically thermally induced residual stress distribution. Keyword: effective coefficient of thermal<br/>expansion, residual stress, hybrid composite, numerical method, representative volume element