Technical training
Blade Repair Standard / V4 2023-05-02
Explain how the strength of the repair depends on each layer of repair fibres overlapping the corresponding layer of existing fibres to ensure the correct load transfer through the repair
Explain that each layer of damaged fibres must be repaired
Ask the participants relevant questions about the importance of maintaining the correct overlaps between each repair layer and the corresponding existing layer in the damaged composite laminate Give constructive feedback on the participants’ explanations about the importance of maintaining the correct overlaps between each repair layer and the corresponding existing layer in the damaged composite laminate
The participants shall:
Share their understanding of the importance of maintaining the correct overlaps between each repair layer and the corresponding existing layer in the damaged composite laminate
ELEMENT 17.4 - DRY FIBRES AND AIR VOIDS
Learning objective:
145) The participants can explain the effect of dry fibres and air voids on the strength of a laminate structure (Knowledge, intermediate level)
The instructor shall:
Define the word ‘matrix’ in the context of blade repair materials
Define the term ‘fibre content’, and explain how this affects the properties of the cured laminate
Explain how the matrix material resists compression loads in the laminate structure and how air voids will create localised weak spots, and how dry fibres will be able to bend and kink leading to failure of the laminate structure Ask the participants relevant questions about the function of the matrix material, how air voids and dry fibres can lead to failure of the laminate structure, and how the fibre content can affect the properties of the laminate Give constructive feedback on the participants’ explanations about the function of the matrix material and how air voids and dry fibres can lead to failure of the laminate structure, and how the fibre content can affect the properties of the laminate
The participants shall:
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