Book contents
- Composites Science, Technology, and Engineering
- Composites Science, Technology, and Engineering
- Copyright page
- Contents
- Preface
- 1 Introduction
- 2 Fibres and Particulate Reinforcements
- 3 Matrices
- 4 Composites Fabrication
- 5 Mechanical Properties of Composite Materials
- 6 Mechanical Properties of Laminates
- 7 Fatigue Loading of Laminates
- 8 Environmental Effects
- 9 Joining, Repair, Self-Healing, and Recycling of Composites
- 10 Case Histories
- Index
- References
8 - Environmental Effects
Published online by Cambridge University Press: 14 April 2022
Book contents
- Composites Science, Technology, and Engineering
- Composites Science, Technology, and Engineering
- Copyright page
- Contents
- Preface
- 1 Introduction
- 2 Fibres and Particulate Reinforcements
- 3 Matrices
- 4 Composites Fabrication
- 5 Mechanical Properties of Composite Materials
- 6 Mechanical Properties of Laminates
- 7 Fatigue Loading of Laminates
- 8 Environmental Effects
- 9 Joining, Repair, Self-Healing, and Recycling of Composites
- 10 Case Histories
- Index
- References
Summary
Polymeric matrices absorb moisture, so here we examine how this affects the performance of a composite material. For an aerospace artefact, absorption and desorption is an important issue. For example, on the tarmac the relative humidity (RH) is high, whereas in flight the RH is low. Also, the ambient temperature can vary significantly, whereas the skin of a military aircraft may reach temperatures of 120 °C in flight. Therefore, we consider the effects of RH, temperature, and thermal excursions on moisture absorption and how they influence the micromechanics. Initially we can assume that the fibres are insensitive to water, which is realistic for most common reinforcements apart from aramid fibres.
- Type
- Chapter
- Information
- Composites Science, Technology, and Engineering , pp. 269 - 301Publisher: Cambridge University PressPrint publication year: 2022
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