2, October 2017

ESA Open Invitation to Tender AO9097
Open Date: 27/09/2017
Closing Date: 08/11/2017 13:00:00

Status: ISSUED
Reference Nr.: 17.133.14
Prog. Ref.: GSTP Element 1 Dev
Budget Ref.: E/0904-611 – GSTP Element 1 Dev
Special Prov.: PL
Tender Type: C
Price Range: 200-500 KEURO
Products: Launchers / Structures / Payload adapters
Launchers / Structures / Structures – BB / Other
Satellites & Probes / Structures / Primary Structures
Satellites & Probes / Structures / Structures – BB / Other
Techology Domains: Structures / Structural Design and Verification Methods and Tools / Testing Tools and Methodologies
Structures / Structural Design and Verification Methods and Tools / In-flight/In-orbit Loads and Vibration Measurement Techniques
Establishment: ESTEC
Directorate: Directorate of Tech, Eng. & Quality
Department: Mechanical Engineering Department
Division: Structure and Mechanisms Division
Contract Officer: van Hilten, Linda
Industrial Policy Measure: N/A – Not apply
Last Update Date: 27/09/2017
Update Reason: Tender issue

Recent developments in TRP and ARTES have provided significant results in the instrumentation of CFRP structures with optical fibres including Bragg grating sensors, among others. This allows for strain measurement and thermal measurement with a small number of optical fibres, by multiplexing a large amountof sensors.The open questions still present concern mainly the integration of the optical fibres into the composite material and the characterisation of the micromechanicalbehaviour, mainly for strength. This is due to the differing dimensions and stiffness of the structural fibres and the optical fibres. A full characterisation in terms offracture mechanics in the resin system, thermo-elastic compatibility and the coupled stiffness is necessary both for the structure and the sensor system.The activity proposed will profit from the lessons learned in prior lower TRL developments in ARTES 5 (Highly Stable Antenna Technologies, High Performance Tanks with In-Situ Health Monitoring) and TRP (Optical-FibreTemperature Sensor for Structural Health Monitoring: Engineering Model Space Assessment).

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