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Project ID: G1RD-CT-2001-00543
Finanziato nell'ambito di: FP5-GROWTH
Paese: Netherlands

Fibre-optic sensor embedded in prepreg tape for integrating sensor system in high-pressure tank

A prototype sensor tape was developed consisting of a polyamide optical sensor embedded in a glass fibre - epoxy prepreg tape.

The following issues were addressed:
1. Producibility
2. Handling, sensor survivability
3. Strength and stiffness
4. Bonding compatibility with the composite structure of the pressure vessel

This technique was investigated as an alternative to a polyamide optical sensor integrated into a glass-PPS tape. The main advantage of using this type of tape compared to a glass-PPS tape is the very good bonding compatibility with the carbon-epoxy structure of the composite high-pressure tank. No additional adhesive is needed. This saves time and costs.

This type of sensor tape can be used for any composite structure using an epoxy resin matrix. After placing the tape with the embedded sensor it can be co-cured, giving a very good connection of the embedded sensor to the composite structure, ensuring reliable measurements. Thus, this sensor tape can be used for structural health monitoring in composite marine, transport and aerospace structures.

At this stage the prototype sensor tape must be further developed to improve producibility and achieve a low-cost end product.


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