petra franitza, elke thiele, romy naumann · 2bfuntex final conference – fiera milano rho (it)...

2BFUNTEX Final Conference – Fiera Milano Rho (IT) – 14 November 2015

Technology Transfer of Functional Textile Innovations

“Technical textiles for monitoring applications in construction”

Petra Franitza, Elke Thiele, Romy NaumannSaxon Textile Research Institute (STFI)


Content

• Introduction of Saxon Textile Research Institute

• National projects on textile-integrated monitoring systems

• Application fields of textile integrated monitoring systems

• Transfer of research results


Germany

Berlin

Saxony

The institute is located in Saxony.

STFI - Saxon Textile Research Institute


Dresden

Chemnitz

Leipz ig

Chemnitz – Industrial Center in Saxony


Saxon Textile Research Institute

Non-profit institute; associated to Chemnitz University of Technology Foundation in 1992 by joining two research institutes Currently 140 employees

Center of Excellence in Nonwovens Fibre Nonwovens Spunbonded

Nonwovens

Innovation Center of Technical Textiles Woven, Knitted and

Composite Products Finishing / Coating /

Lamination

Services Testing Certification of PPE Certification Center for

Geosynthetics

Profile of STFI

Transfer Center Communication and Process Management International Cooperation & Research Transfer


…to integrate fibre optical sensors into textile structures

Combination of reinforcement and monitoring

To achieve:

• Optimized connection of the sensor and the structure

• Simple application process of the sensors

• The whole textile structure is becoming a sensor

• Three-dimensional sensor

• Protection of the sensors against overload

Motivation…


1. STFI:BMBF - 02WH0570:Development of multifunctional sensor-based geotextiles for dike monitoring(Duration: 05/2005-05/2008)

BMBF (Growth core highSTICK®) - 03WKBJ1D: Sensor-based textile reinforcement / Sub-project: Investigation into fixation of fibre optical sensors onto carbon fibre lamellas by stitching (Duration: 09/2007-08/2010)

AIF 17110 BR:Development of novel multifunctional building textiles for moisture monitoring in concrete and timber constructions (Duration: 04/2011-09/2013)

2. GGB mbH (Company for Geo Mechanics and Measurement Techniques BMWi: ZIM-KF2699001WM0 (follow-up project of Growth core highSTICK®)

National projects on sensor textiles


~

FBG

A textile structure with sensor-optical fibres consists of…

Measuring instrument

Connecting system (forerunner fibres, end-runner fibres, plugs, ..)

Sensor-optical fibres (glass, plastic materials)

Textile structure to position sensor-optical fibresEmbroidering process, to apply optical fibre sensors on carbon fabricsEmbroidery groundLength: 0,60 m - 50 mWidth: 150 mm; 10 mm - 1000 mmThickness: 0.90 mm - 5 mmE-module: 30 kN/mm²Tensile strength: 300kN/m


Technical Potential

• Textile processing

• Weaving

• Warp-knitting

• Knitting

• Nonwoven production

• Embroidering

• Finishing

Examples of sensor positioning

Options of positioning the sensors in textiles


ZSK STICKTRONIC SGW 0100 – 800W-Kopf; 800 rev/min

Embroidering process to apply optical fibre sensors onto carbon fabrics


Advantages

• Textiles applicable for both - reinforcement and monitoring

• Positioning optical fibres with integrated Fibre Bragg Gratings by embroidering

Embroidering process to apply optical fibre sensors onto carbon fabrics


MotivationDuring lifetime buildings lose their initial stability either because of aging or overload. Reliable systems for reconstruction of buildings are needed to ensure safety.

ObjectiveDevelopment of textile structure for application on construction site. The tasks of the textiles are to reinforce and monitor structures at risk.

ApplicationFor reconstruction to reinforce and monitor the structural health of buildings.

Das Bild kann zurzeit nicht angezeigt werden.

Application in structural engineering


• The textile is fixed by epoxy resin onto the beam or onto the wall

• Preparation vertically or overhead

• Permanent connection between the pad and the components

Example of textile integrated monitoring systems in construction


• Large scale tests in terms of accuracy, zero-point stability, resolution

• Appliied on steel beams, pre-stressed concrete components, concrete beams

• Strain measurement in tensile zone using different comparison methods

• Simulated values displayed very well correlations with the values measured

(DMS, Strain Checker, SENSuTEX ®)

0

50

100

150

200

250

300

350

400

13:48 13:50 13:53 13:56 13:59 14:02 14:05 14:08Zeit

Deh

nu

ng

[μ

m/m

]

Mittel FBG Gelege 1

Mittel FBG Gelege 2

Strain Checker

DMS HBM

Dehnung berechnet



• GGB mbH using Online-Monitor Solution GKSpro®

• software is suitable for recording, saving, processing, visualizing, evaluating, documenting and archiving sensor- signals

Online monitoring



• Monitoring of roofs in winter 2012/13

• Field tests: snowfall monitoring is realized

• Monitoring system consists of classical DMS and SENSuTEX ®



• Defined warning levels:

• Sandbags installed at the building's roof to simulate defined snow loads

0

100

200

300

400

500

600

09:07 09:21 09:36 09:50 10:04 10:19Zeit

Deh

nu

ng

[μ

m/m

]

DMS 1

FBG 1

FBG 2

Field tests


• SENSuTEX® : 3 periods of snowfall were detected

• System worked very well and reliable

-200

-150

-100

-50

0

50

100

22.11.2012 15.12.2012 07.01.2013 30.01.2013 22.02.2013 17.03.2013

Datum

Deh

nu

ng

[μ

m/m

]

FBG 1FBG 2FBG Temperatur

-50

0

50

100

150

200

22.11.2012 15.12.2012 07.01.2013 30.01.2013 22.02.2013 17.03.2013

Datum

Deh

nu

ng

[μ

m/m

]

FBG 1

FBG 2

DMS

starker Schneefall

Dach beräumt



Technology Transfer I

• Successful completion of the national BMBF project with practical testing and validation of the developed monitoring system

• Successful national follow-up project for the SME which developed the monitoring system with software platform

• Permanent support of the SMEs by STFI concerning stitching technology and material processing

• Joint presentations and dissemination activities

• Successful product SENSuTEX® introduced into the market in June 2013


IPR issues and transfer

• Patent application for technology filed in October 2008

• Patent granted in October 2009

• Patent transferred to industrial partner in 2013/2014

Technology Transfer II


Thank you for listening!


Der Inhalt dieser Präsentation gehört dem Sächsischen Textilforschungsinstitute.V. (STFI). Das STFI übernimmt keine Verantwortung oder Haftung füreventuelle Schäden, die aus der Weitergabe und/oder Nutzung derInformationen aus dieser Präsentation entstehen. Weiterhin verstößt dasunerlaubte Kopieren oder Veröffentlichen des Inhaltes dieser Präsentationgegen das Urheberrecht.

The content of this presentation is owned by the STFI e.V. (Saxon TextileResearch Institute). STFI does not accept any responsibility and/or liability forany use made of the information provided in this presentation. Furthermore,STFI does not accept any unauthorised copy or publishing of the content whichwill be handled as infringe of copyright.

Disclaimer

petra franitza, elke thiele, romy naumann · 2bfuntex final conference – fiera milano rho (it)...

Documents